ISO 4766 Set Screws | McMaster-Carr

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About Set Screws

Secure gears, pulleys, and other objects that require frequent adjustments, even in wet environments. These flat-tip set screws hold tightly against flat surfaces without causing surface damage when they’re adjusted. They are made of brass, so they resist corrosion, allow electric currents to pass, and are not magnetic. All meet ISO and DIN dimensional standards.

For technical drawings and 3-D models, click on a part number.

Brass
Lg., mm	Specifications Met	Pkg. Qty.		Pkg.
M2 × 0.4 mm
3	DIN 551, ISO 4766	10	000000000	00000
4	DIN 551, ISO 4766	10	000000000	0000
5	DIN 551, ISO 4766	10	000000000	0000
6	DIN 551, ISO 4766	10	000000000	0000
8	DIN 551, ISO 4766	10	000000000	0000
M2.5 × 0.45 mm
5	DIN 551, ISO 4766	10	000000000	0000
M3 × 0.5 mm
3	DIN 551, ISO 4766	25	000000000	0000
4	DIN 551, ISO 4766	25	000000000	0000
5	DIN 551, ISO 4766	25	000000000	0000
6	DIN 551, ISO 4766	25	000000000	0000
8	DIN 551, ISO 4766	25	000000000	0000
10	DIN 551, ISO 4766	25	000000000	0000
12	DIN 551, ISO 4766	25	000000000	0000
M4 × 0.7 mm
4	DIN 551, ISO 4766	25	000000000	00000
5	DIN 551, ISO 4766	25	000000000	0000
6	DIN 551, ISO 4766	25	000000000	0000
8	DIN 551, ISO 4766	25	000000000	0000
10	DIN 551, ISO 4766	25	000000000	0000
12	DIN 551, ISO 4766	25	000000000	00000
16	DIN 551, ISO 4766	25	000000000	00000
20	DIN 551, ISO 4766	10	000000000	0000
M5 × 0.8 mm
5	DIN 551, ISO 4766	25	000000000	00000
6	DIN 551, ISO 4766	25	000000000	00000
8	DIN 551, ISO 4766	25	000000000	00000
10	DIN 551, ISO 4766	10	000000000	0000
12	DIN 551, ISO 4766	10	000000000	0000
16	DIN 551, ISO 4766	10	000000000	0000
20	DIN 551, ISO 4766	10	000000000	0000
25	DIN 551, ISO 4766	10	000000000	00000
30	DIN 551, ISO 4766	10	000000000	00000
M6 × 1 mm
6	DIN 551, ISO 4766	10	000000000	0000
8	DIN 551, ISO 4766	10	000000000	0000
10	DIN 551, ISO 4766	10	000000000	0000
12	DIN 551, ISO 4766	10	000000000	0000
16	DIN 551, ISO 4766	10	000000000	0000
20	DIN 551, ISO 4766	10	000000000	00000
25	DIN 551, ISO 4766	10	000000000	00000
30	DIN 551, ISO 4766	5	000000000	0000
M8 × 1.25 mm
8	DIN 551, ISO 4766	5	000000000	0000
10	DIN 551, ISO 4766	10	000000000	0000
12	DIN 551, ISO 4766	10	000000000	00000
16	DIN 551, ISO 4766	10	000000000	00000
20	DIN 551, ISO 4766	5	000000000	0000
25	DIN 551, ISO 4766	5	000000000	0000
30	DIN 551, ISO 4766	5	000000000	00000
M10 × 1.5 mm
10	DIN 551, ISO 4766	1	000000000	0000
12	DIN 551, ISO 4766	5	000000000	00000
16	DIN 551, ISO 4766	5	000000000	00000
20	DIN 551, ISO 4766	1	000000000	0000
25	DIN 551, ISO 4766	1	000000000	0000
30	DIN 551, ISO 4766	1	000000000	0000
35	DIN 551, ISO 4766	1	000000000	0000
40	DIN 551, ISO 4766	1	000000000	0000
45	DIN 551, ISO 4766	1	000000000	00000
50	DIN 551, ISO 4766	1	000000000	00000
M12 × 1.75 mm
20	DIN 551, ISO 4766	1	000000000	0000

Metric Slotted Plastic Flat-Tip Set Screws

Often used to secure gears and pulleys to shafts, these metric nylon set screws are lightweight and won’t carry an electrical current. Their flat tip supports frequent adjustments without damaging surfaces. All meet ISO and DIN dimensional standards.

For technical drawings and 3-D models, click on a part number.

Nylon Plastic
Lg., mm	Temp. Range, °F	Color	Hardness	Specifications Met	Pkg. Qty.		Pkg.
M4 × 0.7 mm
8	0° to 200°	Off-White	Not Rated	DIN 551, ISO 4766	25	000000000	00000
10	0° to 200°	Off-White	Not Rated	DIN 551, ISO 4766	25	000000000	0000
M5 × 0.8 mm
5	0° to 200°	Off-White	Not Rated	DIN 551, ISO 4766	25	000000000	0000
6	0° to 200°	Off-White	Not Rated	DIN 551, ISO 4766	25	000000000	0000
8	0° to 200°	Off-White	Not Rated	DIN 551, ISO 4766	25	000000000	0000
10	0° to 200°	Off-White	Not Rated	DIN 551, ISO 4766	25	000000000	0000
M6 × 1 mm
6	0° to 200°	Off-White	Not Rated	DIN 551, ISO 4766	25	000000000	0000
8	0° to 200°	Off-White	Not Rated	DIN 551, ISO 4766	25	000000000	0000
10	0° to 200°	Off-White	Not Rated	DIN 551, ISO 4766	25	000000000	0000
12	0° to 200°	Off-White	Not Rated	DIN 551, ISO 4766	25	000000000	0000
M8 × 1.25 mm
10	0° to 200°	Off-White	Not Rated	DIN 551, ISO 4766	10	000000000	0000
12	0° to 200°	Off-White	Not Rated	DIN 551, ISO 4766	10	000000000	0000

Metric Slotted Alloy Steel Flat-Tip Set Screws

Strong and durable, these alloy steel set screws hold objects tightly against flat surfaces. Their flat tip causes minimal surface damage, even with frequent adjustments. They are often used to secure gears and pulleys to shafts. All meet ISO and DIN dimensional standards.

For technical drawings and 3-D models, click on a part number.

Alloy Steel
Lg., mm	Hardness	Specifications Met	Pkg. Qty.		Pkg.
M2 × 0.4 mm
3	Rockwell B67	DIN 551, ISO 4766	50	000000000	00000
4	Rockwell B67	DIN 551, ISO 4766	50	000000000	00000
5	Rockwell B67	DIN 551, ISO 4766	50	000000000	0000
6	Rockwell B67	DIN 551, ISO 4766	50	000000000	0000
8	Rockwell B67	DIN 551, ISO 4766	50	000000000	00000
M2.5 × 0.45 mm
3	Rockwell B67	DIN 551, ISO 4766	50	000000000	00000
4	Rockwell B67	DIN 551, ISO 4766	50	000000000	00000
5	Rockwell B67	DIN 551, ISO 4766	50	000000000	0000
6	Rockwell B67	DIN 551, ISO 4766	50	000000000	00000
8	Rockwell B67	DIN 551, ISO 4766	50	000000000	00000
10	Rockwell B67	DIN 551, ISO 4766	50	000000000	00000
M3 × 0.5 mm
3	Rockwell B67	DIN 551, ISO 4766	100	000000000	0000
4	Rockwell B67	DIN 551, ISO 4766	100	000000000	0000
5	Rockwell B67	DIN 551, ISO 4766	100	000000000	00000
6	Rockwell B67	DIN 551, ISO 4766	100	000000000	00000
8	Rockwell B67	DIN 551, ISO 4766	100	000000000	00000
10	Rockwell B67	DIN 551, ISO 4766	100	000000000	00000
12	Rockwell B67	DIN 551, ISO 4766	50	000000000	0000
16	Rockwell B67	DIN 551, ISO 4766	50	000000000	00000
20	Rockwell B67	DIN 551, ISO 4766	25	000000000	0000
M4 × 0.7 mm
4	Rockwell B67	DIN 551, ISO 4766	100	000000000	0000
5	Rockwell B67	DIN 551, ISO 4766	100	000000000	00000
6	Rockwell B67	DIN 551, ISO 4766	100	000000000	00000
8	Rockwell B67	DIN 551, ISO 4766	100	000000000	00000
10	Rockwell B67	DIN 551, ISO 4766	100	000000000	00000
12	Rockwell B67	DIN 551, ISO 4766	100	000000000	00000
16	Rockwell B67	DIN 551, ISO 4766	50	000000000	00000
20	Rockwell B67	DIN 551, ISO 4766	25	000000000	0000
25	Rockwell B67	DIN 551, ISO 4766	25	000000000	0000
30	Rockwell B67	DIN 551, ISO 4766	25	000000000	0000
M5 × 0.8 mm
5	Rockwell B67	DIN 551, ISO 4766	50	000000000	0000
6	Rockwell B67	DIN 551, ISO 4766	50	000000000	0000
8	Rockwell B67	DIN 551, ISO 4766	50	000000000	0000
10	Rockwell B67	DIN 551, ISO 4766	50	000000000	00000
12	Rockwell B67	DIN 551, ISO 4766	50	000000000	0000
16	Rockwell B67	DIN 551, ISO 4766	50	000000000	00000
20	Rockwell B67	DIN 551, ISO 4766	25	000000000	00000
25	Rockwell B67	DIN 551, ISO 4766	25	000000000	0000
30	Rockwell B67	DIN 551, ISO 4766	25	000000000	00000
M6 × 1 mm
6	Rockwell B67	DIN 551, ISO 4766	50	000000000	0000
8	Rockwell B67	DIN 551, ISO 4766	50	000000000	0000
10	Rockwell B67	DIN 551, ISO 4766	50	000000000	0000
12	Rockwell B67	DIN 551, ISO 4766	50	000000000	0000
16	Rockwell B67	DIN 551, ISO 4766	50	000000000	00000
20	Rockwell B67	DIN 551, ISO 4766	25	000000000	0000
25	Rockwell B67	DIN 551, ISO 4766	25	000000000	00000
30	Rockwell B67	DIN 551, ISO 4766	10	000000000	0000
35	Rockwell B67	DIN 551, ISO 4766	10	000000000	0000
40	Rockwell B67	DIN 551, ISO 4766	10	000000000	0000
M8 × 1.25 mm
8	Rockwell B67	DIN 551, ISO 4766	25	000000000	00000
10	Rockwell B67	DIN 551, ISO 4766	25	000000000	00000
12	Rockwell B67	DIN 551, ISO 4766	25	000000000	00000
16	Rockwell B67	DIN 551, ISO 4766	25	000000000	00000
20	Rockwell B67	DIN 551, ISO 4766	25	000000000	00000
25	Rockwell B67	DIN 551, ISO 4766	10	000000000	0000
30	Rockwell B67	DIN 551, ISO 4766	10	000000000	0000
35	Rockwell B67	DIN 551, ISO 4766	10	000000000	00000
40	Rockwell B67	DIN 551, ISO 4766	10	000000000	00000
45	Rockwell B67	DIN 551, ISO 4766	10	000000000	00000
50	Rockwell B67	DIN 551, ISO 4766	10	000000000	00000
M10 × 1.5 mm
10	Rockwell B67	DIN 551, ISO 4766	10	000000000	0000
12	Rockwell B67	DIN 551, ISO 4766	10	000000000	0000
16	Rockwell B67	DIN 551, ISO 4766	10	000000000	00000
20	Rockwell B67	DIN 551, ISO 4766	10	000000000	00000
25	Rockwell B67	DIN 551, ISO 4766	10	000000000	00000
30	Rockwell B67	DIN 551, ISO 4766	10	000000000	00000
35	Rockwell B67	DIN 551, ISO 4766	10	000000000	00000
40	Rockwell B67	DIN 551, ISO 4766	5	000000000	0000
45	Rockwell B67	DIN 551, ISO 4766	5	000000000	0000
50	Rockwell B67	DIN 551, ISO 4766	5	000000000	0000

Metric Slotted 18-8 Stainless Steel Flat-Tip Set Screws

Secure objects to flat surfaces in washdown and corrosive environments. Made of stainless steel, these set screws resist corrosion better than steel and are almost as strong. Their flat tip causes minimal surface damage even when they’re adjusted frequently. They are often used to fix gears and pulleys to a shaft. All meet ISO and DIN dimensional standards.

For technical drawings and 3-D models, click on a part number.

18-8 Stainless Steel
Lg., mm	Hardness	Specifications Met	Pkg. Qty.		Pkg.
M2 × 0.4 mm
3	Not Rated	DIN 551, ISO 4766	50	000000000	000000
4	Not Rated	DIN 551, ISO 4766	50	000000000	00000
5	Not Rated	DIN 551, ISO 4766	50	000000000	00000
M2.5 × 0.45 mm
3	Not Rated	DIN 551, ISO 4766	50	000000000	00000
4	Not Rated	DIN 551, ISO 4766	50	000000000	00000
5	Not Rated	DIN 551, ISO 4766	50	000000000	00000
M3 × 0.5 mm
3	Not Rated	DIN 551, ISO 4766	10	000000000	0000
4	Not Rated	DIN 551, ISO 4766	10	000000000	0000
5	Not Rated	DIN 551, ISO 4766	10	000000000	0000
6	Not Rated	DIN 551, ISO 4766	10	000000000	0000
8	Not Rated	DIN 551, ISO 4766	10	000000000	0000
10	Not Rated	DIN 551, ISO 4766	10	000000000	0000
12	Not Rated	DIN 551, ISO 4766	10	000000000	0000
16	Not Rated	DIN 551, ISO 4766	10	000000000	0000
20	Not Rated	DIN 551, ISO 4766	10	000000000	0000
M4 × 0.7 mm
4	Not Rated	DIN 551, ISO 4766	10	000000000	0000
5	Not Rated	DIN 551, ISO 4766	10	000000000	0000
6	Not Rated	DIN 551, ISO 4766	10	000000000	0000
8	Not Rated	DIN 551, ISO 4766	10	000000000	0000
10	Not Rated	DIN 551, ISO 4766	10	000000000	0000
12	Not Rated	DIN 551, ISO 4766	10	000000000	0000
16	Not Rated	DIN 551, ISO 4766	10	000000000	0000
20	Not Rated	DIN 551, ISO 4766	10	000000000	0000
25	Not Rated	DIN 551, ISO 4766	10	000000000	0000
M5 × 0.8 mm
6	Not Rated	DIN 551, ISO 4766	10	000000000	0000
8	Not Rated	DIN 551, ISO 4766	10	000000000	0000
10	Not Rated	DIN 551, ISO 4766	10	000000000	0000
12	Not Rated	DIN 551, ISO 4766	10	000000000	0000
16	Not Rated	DIN 551, ISO 4766	10	000000000	0000
20	Not Rated	DIN 551, ISO 4766	10	000000000	00000
25	Not Rated	DIN 551, ISO 4766	10	000000000	00000
M6 × 1 mm
6	Not Rated	DIN 551, ISO 4766	10	000000000	0000
8	Not Rated	DIN 551, ISO 4766	10	000000000	0000
10	Not Rated	DIN 551, ISO 4766	10	000000000	0000
12	Not Rated	DIN 551, ISO 4766	10	000000000	0000
16	Not Rated	DIN 551, ISO 4766	10	000000000	00000
20	Not Rated	DIN 551, ISO 4766	10	000000000	00000
25	Not Rated	DIN 551, ISO 4766	5	000000000	0000
30	Not Rated	DIN 551, ISO 4766	5	000000000	0000
40	Not Rated	DIN 551, ISO 4766	5	000000000	0000
M8 × 1.25 mm
10	Not Rated	DIN 551, ISO 4766	5	000000000	0000
12	Not Rated	DIN 551, ISO 4766	5	000000000	0000
16	Not Rated	DIN 551, ISO 4766	5	000000000	0000
20	Not Rated	DIN 551, ISO 4766	5	000000000	0000
25	Not Rated	DIN 551, ISO 4766	5	000000000	0000
30	Not Rated	DIN 551, ISO 4766	5	000000000	00000
35	Not Rated	DIN 551, ISO 4766	5	000000000	00000
40	Not Rated	DIN 551, ISO 4766	5	000000000	00000
M10 × 1.5 mm
16	Not Rated	DIN 551, ISO 4766	1	000000000	0000
20	Not Rated	DIN 551, ISO 4766	1	000000000	0000
25	Not Rated	DIN 551, ISO 4766	1	000000000	0000
30	Not Rated	DIN 551, ISO 4766	1	000000000	0000
35	Not Rated	DIN 551, ISO 4766	1	000000000	0000
40	Not Rated	DIN 551, ISO 4766	1	000000000	0000

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About Set Screws

Metric Slotted Brass Flat-Tip Set Screws

Metric Slotted Plastic Flat-Tip Set Screws

Metric Slotted Alloy Steel Flat-Tip Set Screws

Metric Slotted 18-8 Stainless Steel Flat-Tip Set Screws