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6-Point Sockets



The hex shape achieves the best possible grip on hex fasteners to prevent rounding their points. For use with hand-drive tools only.
For technical drawings and 3-D models, click on a part number.
Nonsparking 6-Point Sockets


Made of aluminum-bronze, these sockets satisfy OSHA requirements that specify nonsparking tools for locations where flammable vapors and combustible residues are present. The hex shape provides the best possible grip on hex fasteners and prevents rounding.
Warning: Do not use these tools in direct contact with acetylene.
For technical drawings and 3-D models, click on a part number.
Extra-Deep 6-Point Sockets


With more than double the clearance of standard sockets, these sockets access nuts on extra-long bolts. The hex shape achieves the best possible grip on hex fasteners and prevents rounding of their points. For use with hand-drive tools only.
For technical drawings and 3-D models, click on a part number.
Drive Size | Overall Lg. | OD | Material | Each | |
1/2" Square Drive | |||||
---|---|---|---|---|---|
24 mm | 6" | 1 3/8" | Zinc-Plated Steel | 00000000 | 000000 |
Fastener-Holding 6-Point Sockets


Hold fasteners securely in place as you drive them. The hex shape of these sockets achieves the best possible grip on hex fasteners to prevent rounding their points. For use with manual-drive tools only.
Spring-Loaded Ball—Two spring-loaded balls inside these sockets grip nuts and bolts, including nonmagnetic fasteners like stainless steel screws.
For technical drawings and 3-D models, click on a part number.
6-Point Stainless Steel Sockets


Designed for use with stainless steel fasteners, these sockets are more corrosion resistant than steel sockets and less likely to flake. They help you avoid the rust and contamination that steel flakes can cause when they’re left behind. The hex-shaped drive provides the best possible grip on hex fasteners and prevents rounding. Only use with hand-driven tools.
For technical drawings and 3-D models, click on a part number.
Drive Size | Overall Lg. | OD | Specifications Met | Each | |
1/2" Square Drive | |||||
---|---|---|---|---|---|
24 mm | 1 11/16" | 1 11/32" | DIN 3124, ISO 2725-1 | 00000000 | 000000 |
Nonmarring 6-Point Sockets



With a plastic insert, these sockets firmly grip hex nuts and bolts without rounding them or scratching highly polished finishes. They’re often used in food, beverage, and pharmaceutical plants, since they won’t leave grooves where bacteria could grow and are also FDA compliant to safely touch food. An O-ring secures the insert so it won’t fall out, but still lets you remove the insert by hand once it’s worn down. Attach these sockets to hand-driven tools only.
For technical drawings and 3-D models, click on a part number.
12-Point Sockets



The 12-point shape quickly positions on hex fasteners. These sockets are for hand-driven use only.
For technical drawings and 3-D models, click on a part number.
Universal-Fit Sockets
Turn multiple shapes and sizes of fasteners with a single socket. Use these on hex, square, and other external-drive fasteners—even wing nuts. Place the socket over the nut or screw head and the 54 pins move to grip it securely. For use with hand-drive tools only.
For technical drawings and 3-D models, click on a part number.


Drive Size | Overall Lg. | OD | Material | Each | |
1/2" Square Drive | |||||
---|---|---|---|---|---|
7/16"-1 1/4", 11 mm-32 mm | 3 1/2" | 1 11/16" | Chrome-Plated Steel | 00000000 | 000000 |
Hex Bit Sockets


For technical drawings and 3-D models, click on a part number.
Drive Size | Overall Lg. | Material | Bit Replaceable | Each | |
Metric | |||||
---|---|---|---|---|---|
1" Square Drive | |||||
24 mm | 3 9/16" | Chrome-Plated Steel | No | 0000000 | 0000000 |
Wrench Heads


Reach nuts obstructed by a fluid line or other barrier with these wrench heads. Connect them to your socket extension and ratchet wrench to turn fasteners where clearance is limited from both the top and side. You can also attach one directly to your ratchet wrench to convert it into an open-ended ratcheting wrench. Also known as crowfoot wrenches.
For technical drawings and 3-D models, click on a part number.
6-Point Impact Sockets
Achieve the best possible grip on hex fasteners and prevent rounding. These sockets are made to withstand the high torque and force of impact tools.
3/4", 1", and 1 1/2" square drive size sockets require a locking retainer. Use with an impact wrench that has a pin-style socket retainer, or use a socket retaining ring with tools that have a hole- or hole-and-ring style socket retainer.
For technical drawings and 3-D models, click on a part number.



Sockets | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Clearance Depth | Retaining Rings | |||||||||
Drive Size | Nut | Bolt | Compatible Retaining Ring ID | Material | Finish | Overall Lg. | Each | Each | ||
3/8" Square Drive | ||||||||||
24 mm | 17/32" | 19/32" | __ | Steel | Black Oxide | 1 1/8" | 0000000 | 000000 | 000000 | 00 |
1/2" Square Drive | ||||||||||
24 mm | 1 1/16" | 1 3/32" | __ | Steel | Black Oxide | 1 3/4" | 0000000 | 00000 | 000000 | 00 |
3/4" Square Drive | ||||||||||
24 mm | 19/32" | 1 1/16" | 1 7/16" | Steel | Black Oxide | 2" | 00000000 | 00000 | 0000000 | 00000 |
1" Square Drive | ||||||||||
24 mm | 35/64" | 1 11/32" | 1 3/4" | Steel | Black Oxide | 2 5/16" | 000000000 | 00000 | 0000000 | 0000 |



Sockets | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Clearance Depth | Retaining Rings | |||||||||
Drive Size | Nut | Bolt | Compatible Retaining Ring ID | Material | Finish | Overall Lg. | Each | Each | ||
3/8" Square Drive | ||||||||||
24 mm | 19/32" | 1 31/32" | __ | Steel | Black Oxide | 2 7/8" | 0000000 | 000000 | 000000 | 00 |
1/2" Square Drive | ||||||||||
24 mm | 5/8" | 2 7/64" | __ | Steel | Black Oxide | 3 1/2" | 0000000 | 00000 | 000000 | 00 |
3/4" Square Drive | ||||||||||
24 mm | 13/16" | 2 1/4" | 1 7/16" | Steel | Black Oxide | 3 1/4" | 0000000 | 00000 | 0000000 | 00000 |
1" Square Drive | ||||||||||
24 mm | 35/64" | 2 3/4" | 1 3/4" | Steel | Black Oxide | 3 9/16" | 00000000 | 00000 | 0000000 | 0000 |
6-Point Flex Impact Sockets



Pivot the head to access fasteners from an angle. These sockets have a hex shape that grips hex fasteners and prevents rounding. They are made to withstand the high torque and force of impact tools.
For technical drawings and 3-D models, click on a part number.
Clearance Depth | |||||||
---|---|---|---|---|---|---|---|
Drive Size | Nut | Bolt | Material | Finish | Overall Lg. | Each | |
Standard | |||||||
1/2" Square Drive | |||||||
24 mm | 35/64" | 35/64" | Steel | Black Magnesium Phosphate Coated | 2 11/16" | 00000000 | 000000 |
12-Point Impact Sockets
The 12-point shape quickly positions on hex fasteners. These sockets are made to withstand the high torque and force of impact tools.
3/4" square drive size sockets require a locking retainer. Use with an impact wrench that has a pin-style socket retainer, or use a socket retaining ring with tools that have a hole- or hole-and-ring style socket retainer.
For technical drawings and 3-D models, click on a part number.



Clearance Depth | |||||||
---|---|---|---|---|---|---|---|
Drive Size | Nut | Bolt | Material | Finish | Overall Lg. | Each | |
1/2" Square Drive | |||||||
Metric | |||||||
24 mm | 27/32" | 21/32" | Steel | Black Oxide | 1 1/2" | 0000000 | 000000 |
Impact Hex Bit Sockets


These sockets are made to withstand the high torque and force of impact tools.
Sockets that list a compatible retaining ring ID require a locking retainer. Use with an impact wrench that has a pin-style socket retainer, or use a socket retaining ring with tools that have a hole- or hole-and-ring style socket retainer.
For technical drawings and 3-D models, click on a part number.
Sockets | Replacement Bits | Retaining Rings | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Drive Size | Overall Lg. | Compatible Retaining Ring ID | Material | Finish | Bit Replaceable | Each | Each | Each | |||
Metric | |||||||||||
3/4" Square Drive | |||||||||||
24 mm | 5 3/16" | 1 7/16" | Steel | Black Oxide | Yes | 00000000 | 000000 | 00000000 | 000000 | 0000000 | 00000 |
1" Square Drive | |||||||||||
24 mm | 3 15/16" | 1 3/4" | Steel | Black Oil Coated | No | 00000000 | 00000 | 000000 | 00 | 0000000 | 0000 |
1 1/2" Square Drive | |||||||||||
24 mm | 4 3/4" | 2 7/8" | Steel | Black Oil Coated | No | 00000000 | 000000 | 000000 | 00 | 0000000 | 0000 |
6-Point Socket Sets
Made in the U.S.A., these tools handle the toughest industrial applications, provide the best grip on fasteners, and have a superior finish. The hex shape grips hex fasteners and prevents rounding.


No. of Pieces | Includes | Container Type | Each | |
3/8" Square Drive | ||||
---|---|---|---|---|
21 | 21 mm, 22 mm, 23 mm, 24 mm, 25 mm, 26 mm Standard Sockets: 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, 20 mm, | Metal Clip Rail | 00000000 | 0000000 |
1/2" Square Drive | ||||
15 | Standard Sockets: 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, 20 mm, 21 mm, 22 mm, 23 mm, 24 mm | Metal Clip Rail | 000000 | 000000 |
16 | 21 mm, 22 mm, 23 mm, 24 mm Deep Sockets: 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, 20 mm, | Metal Clip Rail | 00000000 | 000000 |
24 | 23 mm, 24 mm, 25 mm, 26 mm, 27 mm, 28 mm, 29 mm, 30 mm, 32 mm, 36 mm Deep Sockets: 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, 20 mm, 21 mm, 22 mm, | Metal Clip Rail | 00000000 | 000000 |
24 | 24 mm, 25 mm, 26 mm, 27 mm, 28 mm, 29 mm, 30 mm, 32 mm, 36 mm Standard Sockets: 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, 20 mm, 21 mm, 22 mm, 23 mm, | Metal Clip Rail | 00000000 | 000000 |
3/4" Square Drive | ||||
15 | Deep Sockets: 19 mm, 22 mm, 23 mm ,27 mm, 30 mm, 32 mm, 35 mm, 36 mm, 38 mm, 41 mm, 46 mm, 50 mm, 55 mm, 60 mm | Metal Clip Rail | 00000000 | 000000 |
Economy 6-Point Socket Sets


Suitable for occasional maintenance work, these sets are imported. The hex shape grips hex fasteners and prevents rounding.
No. of Pieces | Components Included | Includes | Each | |
1/2" Square Drive—Chrome-Plated Steel | ||||
---|---|---|---|---|
10 | 10 Sockets | Deep Sockets: 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, 21 mm, 22 mm, 24 mm | 00000000 | 000000 |
Extra-Deep 6-Point Socket Sets


With more than double the clearance of standard sockets, the sockets in these sets access nuts on extra-long bolts. The hex shape achieves the best possible grip on hex fasteners and prevents rounding of their points. For use with hand-drive tools only.
No. of Pieces | Components Included | Includes | Each | |
1/2" Square Drive—Zinc-Plated Steel | ||||
---|---|---|---|---|
5 | 4 Sockets 1 Drive Tool | Extra-Deep Sockets: 17 mm, 19 mm, 24 mm, 30 mm 15" Long Ratchet Wrench | 0000000 | 0000000 |
12-Point Socket Sets
Made in the U.S.A., these tools handle the toughest industrial applications, provide the best grip on fasteners, and have a superior finish. The 12-point shape quickly positions on hex fasteners.
For technical drawings and 3-D models, click on a part number.


No. of Pieces | Includes | Finish | Each | |
3/8" Square Drive—Steel | ||||
---|---|---|---|---|
21 | Standard Sockets: 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, 20 mm, 21 mm, 22 mm, 23 mm, 24 mm, 25 mm, 26 mm | Chrome Plated | 00000000 | 0000000 |
1/2" Square Drive—Steel | ||||
15 | Standard Sockets: 10 mm, 13 mm, 14 mm, 15 mm, 17 mm, 18 mm, 19 mm, 20 mm, 22 mm, 23 mm, 24 mm, 26 mm, 27 mm, 30 mm, 32 mm | Chrome Plated | 0000000 | 000000 |
15 | Deep Sockets: 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, 20 mm, 21 mm, 22 mm, 24 mm, 25 mm | Chrome Plated | 0000000 | 000000 |
23 | Deep Sockets: 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, 20 mm, 21 mm, 22 mm, 23 mm, 24 mm, 25 mm, 26 mm, 27 mm, 28 mm, 29 mm, 30 mm, 31 mm, 32 mm | Chrome Plated | 00000000 | 000000 |
24 | Standard Sockets: 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, 20 mm, 21 mm, 22 mm, 23 mm, 24 mm, 25 mm, 26 mm, 27 mm, 28 mm, 29 mm, 30 mm, 31 mm, 32 mm, 36 mm | Chrome Plated | 00000000 | 000000 |
3/4" Square Drive—Steel | ||||
13 | Standard Sockets: 19 mm, 20 mm, 22 mm, 24 mm, 27 mm, 30 mm, 32 mm, 36 mm, 41 mm, 46 mm, 50 mm, 55 mm, 60 mm | Chrome Plated | 0000000 | 000000 |


No. of Pieces | Components Included | Includes | Finish | Each | |
1/2" Square Drive—Steel | |||||
---|---|---|---|---|---|
20 | 17 Sockets 2 Drive Tools 1 Extension | Standard Sockets: 10 mm, 13 mm, 14 mm, 15 mm, 17 mm, 18 mm, 19 mm, 20 mm, 21 mm, 22 mm, 23 mm, 24 mm, 26 mm, 27 mm, 30 mm, 32 mm, 36 mm 10 3/8" Long Ratchet Wrench 15 1/2" Long Flex-Head Wrench Handle 5" Long Extension | Chrome Plated | 00000000 | 0000000 |
3/4" Square Drive—Steel | |||||
30 | 24 Sockets 2 Drive Tools 3 Extensions Universal Joint | Standard Sockets: 19 mm, 21 mm, 22 mm, 23 mm, 24 mm, 25 mm, 26 mm, 27 mm, 28 mm, 29 mm, 30 mm, 31 mm, 32 mm, 35 mm, 36 mm, 38 mm, 41 mm, 42 mm, 46 mm, 50 mm, 54 mm, 55 mm, 58 mm, 60 mm 24" Long Ratchet Wrench 17 1/2" Long Sliding-Head Wrench Handle 3 1/2" Long Extension 8" Long Extension 16" Long Extension Universal Joint | Chrome Plated | 00000000 | 00000000 |
Foam Socket Organizer for 22 Piece 3/4" Square Drive Size Set | 0000000 | Each | 0000000 |
Economy 12-Point Socket Sets
Suitable for occasional maintenance work, these sets are imported. The 12-point shape quickly positions on hex fasteners.


No. of Pieces | Includes | Each | |
1/2" Square Drive | |||
---|---|---|---|
13 | Standard Sockets: 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, 20 mm, 21 mm, 22 mm, 23 mm, 24 mm | 0000000 | 000000 |


No. of Pieces | Components Included | Includes | Each | |
1/2" Square Drive | ||||
---|---|---|---|---|
14 | 11 Sockets 1 Drive Tool 2 Extensions | Standard Sockets: 10 mm, 12 mm, 13 mm, 14 mm, 15 mm, 17 mm, 18 mm, 19 mm, 20 mm, 21 mm, 24 mm 7" Long Ratchet Wrench 6" Long Extension 10" Long Extension | 0000000 | 0000000 |
Wrench Head Sets


Reach nuts obstructed by a fluid line or other barrier with the wrench heads in these sets. Connect them to a socket extension and ratchet wrench to turn fasteners where clearance is limited from both the top and side. You can also attach one directly to your ratchet wrench to convert it into an open-ended ratcheting wrench. Also known as crowfoot wrenches.
Wrench Opening Shape | No. of Pieces | Includes | Material | Container Type | Each | |
Inch/Metric | ||||||
---|---|---|---|---|---|---|
3/8" Square Drive | ||||||
Rounded | 30 | Wrench Heads (Inch): 5/16", 11/32", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8", 15/16", 1" Wrench Heads (Metric): 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, 20 mm, 21 mm, 22 mm, 23 mm, 24 mm | Nickel-Plated Steel | Plastic Clip Rail | 00000000 | 0000000 |
Secure-Grip Wrench Head Sets


Grip more of your fastener head with these wrench heads. They have a hex or 12-point opening with more surface area than rounded wrench heads, so they make more contact with fasteners for a better hold. Also known as flare-nut crowfoot wrenches or line wrenches, they're often used with flared tube fittings as well as fuel and hydraulic lines. Connect them to a socket extension and ratchet wrench to turn fasteners where clearance is limited from both the top and side. You can also attach one directly to your ratchet wrench to convert it into an open-ended ratcheting wrench.
No. of Pieces | Includes | Material | Wrench Opening Shape | Each | |
3/8" Square Drive | |||||
---|---|---|---|---|---|
18 | Wrench Heads: 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, 20 mm, 21 mm, 22 mm, 23 mm, 24 mm, 27 mm | Nickel-Plated Steel | Hex | 00000000 | 0000000 |
6-Point Impact Socket Sets



The hex shape grips hex fasteners and prevents rounding. These sockets are made to withstand the high torque and force of impact tools.
3/4" square drive size sockets require a locking retainer. Use with an impact wrench that has a pin-style socket retainer, or use a socket retaining ring with tools that have a hole- or hole-and-ring style socket retainer.
No. of Pieces | Components Included | Includes | Container Type | Each | |
1/2" Square Drive—Black-Oxide Steel | |||||
---|---|---|---|---|---|
16 | 16 Sockets | Standard Sockets: 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm 18 mm, 19 mm, 20 mm, 21 mm, 22 mm, 23 mm, 24 mm, 27 mm | Metal Clip Rail | 0000000 | 0000000 |
16 | 16 Sockets | Deep Sockets: 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm 18 mm, 19 mm, 20 mm, 21 mm, 22 mm, 23 mm, 24 mm, 27 mm | Metal Clip Rail | 0000000 | 000000 |
25 | 25 Sockets | Standard Sockets: 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, 20 mm, 21 mm, 22 mm, 23 mm, 24 mm, 25 mm, 26 mm, 27 mm, 28 mm, 29 mm, 30 mm, 32 mm, 36 mm | Metal Clip Rail | 000000000 | 000000 |
25 | 25 Sockets | Deep Sockets: 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, 20 mm, 21 mm, 22 mm, 23 mm, 24 mm, 25 mm, 26 mm, 27 mm, 28 mm, 29 mm, 30 mm, 32 mm, 36 mm | Metal Clip Rail | 000000000 | 000000 |
30 | 30 Sockets | Standard Sockets: 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, 20 mm, 21 mm, 22 mm, 24 mm Deep Sockets: 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, 20 mm, 21 mm, 22 mm, 24 mm | __ | 000000000 | 000000 |
3/4" Square Drive—Black-Oxide Steel | |||||
12 | 12 Sockets | Standard Sockets: 19 mm, 20 mm, 21 mm, 22 mm, 23 mm, 24 mm, 27 mm, 30 mm, 32 mm, 36 mm, 41 mm, 46 mm | Metal Clip Rail | 00000000 | 000000 |
14 | 14 Sockets | Deep Sockets: 19 mm, 21 mm, 22 mm, 23 mm, 24 mm, 26 mm, 27 mm, 30 mm, 32 mm, 33 mm, 35 mm, 36 mm, 38 mm, 41 mm | __ | 000000000 | 000000 |
Dual-Size 12-Point Impact Socket Sets



Use one socket to switch between two fastener sizes. The spring-loaded innermost wall stays in place for smaller fasteners; push the socket onto a larger fastener and this wall slides out of the way.
With twice as many corners, 12-point sockets grab onto hex-drive fasteners more quickly than 6-point sockets. They also match the external 12-point screws commonly found in heavy duty vehicles such as bulldozers and excavators. Also known as double-hex sockets. These sockets are sturdier and have more give than manual-drive sockets, so they'll withstand the high torque and force of impact tools.
No. of Pieces | Components Included | Includes | Each | |
1/2" Square Drive—Steel | ||||
---|---|---|---|---|
5 | 4 Sockets 1 Adapter | Deep Sockets: 13 mm × 17 mm, 19 mm × 24 mm, 22 mm × 30 mm, 27 mm × 32 mm 1/4" Hex Drive Adapter | 00000000 | 0000000 |
Impact Hex Bit Socket Sets


Use these sockets as an alternative to a screwdriver or L-key. They are made to withstand the high torque and force of impact tools.
No. of Pieces | Includes | Material | Container Type | Each | |
3/4" Square Drive | |||||
---|---|---|---|---|---|
5 | Bit Sockets: 14 mm, 17 mm, 19 mm, 22 mm, 24 mm (3 1/2" O'all Lg.) | Black-Oil-Coated Steel | Plastic Case | 000000000 | 0000000 |
1" Square Drive | |||||
6 | Bit Sockets: 14 mm, 17 mm, 19 mm, 22 mm, 24 mm, 27 mm (4" O'all Lg.) | Black-Oxide Steel | Plastic Case | 0000000 | 000000 |
Changeable-Head Torque Wrenches
Change heads to use these tools as an open-end, box, square drive, or hex-key wrench. When the set torque is reached, these wrenches indicate with an audible click and a momentary release. To reverse torque-limiting direction, remove head, turn handle over, and reattach head. The handle and head combination you choose may have different maximum torque values. Do not exceed the lower value.
For technical drawings and 3-D models, click on a part number.