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About Rounded Head Screws
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About Thumb Screw and Binding Post Materials
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Impact-Resistant Polycarbonate Pan Head Phillips Screws

Polycarbonate screws resist breaking in high-impact applications. All are chemical and oil resistant, nonconductive, and lightweight. Length is measured from under the head.
For technical drawings and 3-D models, click on a part number.
Lg. | Threading | Head Dia. | Head Ht. | Drive Size | Temperature Range, °F | Color | Pkg. Qty. | Pkg. | |
Polycarbonate Plastic | |||||||||
---|---|---|---|---|---|---|---|---|---|
2-56 | |||||||||
1/8" | Fully Threaded | 0.170" | 0.063" | No. 1 | -40° to 210° | Clear | 25 | 000000000 | 000000 |
3/16" | Fully Threaded | 0.170" | 0.063" | No. 1 | -40° to 210° | Clear | 25 | 000000000 | 00000 |
1/4" | Fully Threaded | 0.170" | 0.063" | No. 1 | -40° to 210° | Clear | 25 | 000000000 | 00000 |
3/8" | Fully Threaded | 0.170" | 0.063" | No. 1 | -40° to 210° | Clear | 25 | 000000000 | 00000 |
1/2" | Fully Threaded | 0.170" | 0.063" | No. 1 | -40° to 210° | Clear | 25 | 000000000 | 00000 |
4-40 | |||||||||
3/16" | Fully Threaded | 0.219" | 0.080" | No. 1 | -40° to 210° | Clear | 50 | 000000000 | 00000 |
1/4" | Fully Threaded | 0.219" | 0.080" | No. 1 | -40° to 210° | Clear | 50 | 000000000 | 00000 |
3/8" | Fully Threaded | 0.219" | 0.080" | No. 1 | -40° to 210° | Clear | 50 | 000000000 | 00000 |
1/2" | Fully Threaded | 0.219" | 0.080" | No. 1 | -40° to 210° | Clear | 25 | 000000000 | 00000 |
3/4" | Fully Threaded | 0.215" | 0.075" | No. 1 | -60° to 210° | Clear | 25 | 000000000 | 00000 |
6-32 | |||||||||
1/4" | Fully Threaded | 0.270" | 0.097" | No. 2 | -40° to 210° | Clear | 25 | 000000000 | 00000 |
3/8" | Fully Threaded | 0.270" | 0.097" | No. 2 | -40° to 210° | Clear | 25 | 000000000 | 00000 |
1/2" | Fully Threaded | 0.270" | 0.097" | No. 2 | -40° to 210° | Clear | 25 | 000000000 | 00000 |
3/4" | Fully Threaded | 0.263" | 0.092" | No. 1 | -60° to 210° | Clear | 25 | 000000000 | 00000 |
1" | Fully Threaded | 0.263" | 0.092" | No. 2 | -60° to 210° | Clear | 25 | 000000000 | 00000 |
8-32 | |||||||||
1/4" | Fully Threaded | 0.322" | 0.115" | No. 2 | -40° to 210° | Clear | 25 | 000000000 | 00000 |
3/8" | Fully Threaded | 0.322" | 0.115" | No. 2 | -40° to 210° | Clear | 25 | 000000000 | 00000 |
1/2" | Fully Threaded | 0.320" | 0.110" | No. 2 | -60° to 210° | Clear | 25 | 000000000 | 00000 |
3/4" | Fully Threaded | 0.320" | 0.110" | No. 2 | -60° to 210° | Clear | 25 | 000000000 | 00000 |
1" | Fully Threaded | 0.320" | 0.110" | No. 2 | -60° to 210° | Clear | 25 | 000000000 | 00000 |
10-32 | |||||||||
1/4" | Fully Threaded | 0.373" | 0.133" | No. 2 | -40° to 210° | Clear | 25 | 000000000 | 00000 |
3/8" | Fully Threaded | 0.373" | 0.133" | No. 2 | -40° to 210° | Clear | 25 | 000000000 | 00000 |
1/2" | Fully Threaded | 0.373" | 0.133" | No. 2 | -40° to 210° | Clear | 25 | 000000000 | 00000 |
5/8" | Fully Threaded | 0.373" | 0.133" | No. 2 | -40° to 210° | Clear | 25 | 000000000 | 00000 |
3/4" | Fully Threaded | 0.373" | 0.133" | No. 2 | -40° to 210° | Clear | 25 | 000000000 | 00000 |
1" | Fully Threaded | 0.373" | 0.133" | No. 2 | -40° to 210° | Clear | 25 | 000000000 | 00000 |
1/4"-20 | |||||||||
3/8" | Fully Threaded | 0.485" | 0.165" | No. 3 | -60° to 210° | Clear | 10 | 000000000 | 00000 |
1/2" | Fully Threaded | 0.485" | 0.165" | No. 3 | -60° to 210° | Clear | 10 | 000000000 | 00000 |
3/4" | Fully Threaded | 0.505" | 0.180" | No. 3 | -40° to 210° | Clear | 10 | 000000000 | 0000 |
1" | Fully Threaded | 0.505" | 0.180" | No. 3 | -40° to 210° | Clear | 10 | 000000000 | 0000 |
1 1/2" | Fully Threaded | 0.485" | 0.165" | No. 3 | -60° to 210° | Clear | 10 | 000000000 | 00000 |
Metric Impact-Resistant Polycarbonate Pan Head Phillips Screws

Made from polycarbonate, these pan head screws resist breaking in high-impact applications. They are chemical and oil resistant, nonconductive, and lightweight. Length is measured from under the head.
For technical drawings and 3-D models, click on a part number.
Lg., mm | Threading | Head Dia., mm | Head Ht., mm | Drive Size | Temperature Range, °F | Color | Specifications Met | Pkg. Qty. | Pkg. | |
Polycarbonate Plastic | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
M3 × 0.5 mm | ||||||||||
5 | Fully Threaded | 6.00 | 2.40 | No. 0 | -50° to 300° | Clear | DIN 7985, ISO 7045 | 10 | 000000000 | 00000 |
6 | Fully Threaded | 6.00 | 2.40 | No. 0 | -50° to 300° | Clear | DIN 7985, ISO 7045 | 10 | 000000000 | 0000 |
8 | Fully Threaded | 6.00 | 2.40 | No. 0 | -50° to 300° | Clear | DIN 7985, ISO 7045 | 10 | 000000000 | 0000 |
10 | Fully Threaded | 6.00 | 2.40 | No. 0 | -50° to 300° | Clear | DIN 7985, ISO 7045 | 10 | 000000000 | 0000 |
12 | Fully Threaded | 6.00 | 2.40 | No. 0 | -50° to 300° | Clear | DIN 7985, ISO 7045 | 10 | 000000000 | 0000 |
M4 × 0.7 mm | ||||||||||
6 | Fully Threaded | 8.00 | 3.10 | No. 1 | -50° to 300° | Clear | DIN 7985, ISO 7045 | 10 | 000000000 | 0000 |
8 | Fully Threaded | 8.00 | 3.10 | No. 1 | -50° to 300° | Clear | DIN 7985, ISO 7045 | 10 | 000000000 | 0000 |
10 | Fully Threaded | 8.00 | 3.10 | No. 1 | -50° to 300° | Clear | DIN 7985, ISO 7045 | 10 | 000000000 | 0000 |
12 | Fully Threaded | 8.00 | 3.10 | No. 1 | -50° to 300° | Clear | DIN 7985, ISO 7045 | 10 | 000000000 | 0000 |
16 | Fully Threaded | 8.00 | 3.10 | No. 1 | -50° to 300° | Clear | DIN 7985, ISO 7045 | 10 | 000000000 | 00000 |
M5 × 0.8 mm | ||||||||||
8 | Fully Threaded | 10.00 | 3.80 | No. 1 | -50° to 300° | Clear | DIN 7985, ISO 7045 | 10 | 000000000 | 00000 |
10 | Fully Threaded | 10.00 | 3.80 | No. 1 | -50° to 300° | Clear | DIN 7985, ISO 7045 | 10 | 000000000 | 00000 |
12 | Fully Threaded | 10.00 | 3.80 | No. 1 | -50° to 300° | Clear | DIN 7985, ISO 7045 | 10 | 000000000 | 00000 |
16 | Fully Threaded | 10.00 | 3.80 | No. 1 | -50° to 300° | Clear | DIN 7985, ISO 7045 | 10 | 000000000 | 00000 |
20 | Fully Threaded | 10.00 | 3.80 | No. 1 | -50° to 300° | Clear | DIN 7985, ISO 7045 | 10 | 000000000 | 00000 |
M6 × 1 mm | ||||||||||
10 | Fully Threaded | 12.00 | 4.60 | No. 2 | -50° to 300° | Clear | DIN 7985, ISO 7045 | 10 | 000000000 | 00000 |
12 | Fully Threaded | 12.00 | 4.60 | No. 2 | -50° to 300° | Clear | DIN 7985, ISO 7045 | 10 | 000000000 | 00000 |
16 | Fully Threaded | 12.00 | 4.60 | No. 2 | -50° to 300° | Clear | DIN 7985, ISO 7045 | 10 | 000000000 | 00000 |
20 | Fully Threaded | 12.00 | 4.60 | No. 2 | -50° to 300° | Clear | DIN 7985, ISO 7045 | 5 | 000000000 | 0000 |
25 | Fully Threaded | 12.00 | 4.60 | No. 2 | -50° to 300° | Clear | DIN 7985, ISO 7045 | 5 | 000000000 | 0000 |
Impact-Resistant Polycarbonate Slotted Flat Head Screws

Polycarbonate screws resist breaking in high-impact applications better than other plastic screws. All are chemical and oil resistant, nonconductive, and lightweight. They’re angled under the head to sit flush within countersunk holes. Length is measured from the top of the head.
For technical drawings and 3-D models, click on a part number.
Lg. | Threading | Head Dia. | Head Ht. | Temperature Range, °F | Color | Specifications Met | Pkg. Qty. | Pkg. | |
Polycarbonate Plastic | |||||||||
---|---|---|---|---|---|---|---|---|---|
2-56 | |||||||||
1/8" | Fully Threaded | 0.172" | 0.051" | -40° to 210° | Clear | ASME B18.6.3 | 25 | 000000000 | 000000 |
3/16" | Fully Threaded | 0.172" | 0.051" | -40° to 210° | Clear | ASME B18.6.3 | 25 | 000000000 | 00000 |
1/4" | Fully Threaded | 0.172" | 0.051" | -40° to 210° | Clear | ASME B18.6.3 | 25 | 000000000 | 00000 |
3/8" | Fully Threaded | 0.172" | 0.051" | -40° to 210° | Clear | ASME B18.6.3 | 25 | 000000000 | 00000 |
1/2" | Fully Threaded | 0.172" | 0.051" | -40° to 210° | Clear | ASME B18.6.3 | 25 | 000000000 | 00000 |
4-40 | |||||||||
3/16" | Fully Threaded | 0.225" | 0.067" | -40° to 210° | Clear | ASME B18.6.3 | 50 | 000000000 | 00000 |
1/4" | Fully Threaded | 0.225" | 0.067" | -40° to 210° | Clear | ASME B18.6.3 | 50 | 000000000 | 00000 |
3/8" | Fully Threaded | 0.225" | 0.067" | -40° to 210° | Clear | ASME B18.6.3 | 50 | 000000000 | 00000 |
1/2" | Fully Threaded | 0.225" | 0.067" | -40° to 210° | Clear | ASME B18.6.3 | 25 | 000000000 | 00000 |
6-32 | |||||||||
1/4" | Fully Threaded | 0.279" | 0.083" | -40° to 210° | Clear | ASME B18.6.3 | 25 | 000000000 | 00000 |
3/8" | Fully Threaded | 0.279" | 0.083" | -40° to 210° | Clear | ASME B18.6.3 | 25 | 000000000 | 00000 |
1/2" | Fully Threaded | 0.279" | 0.083" | -40° to 210° | Clear | ASME B18.6.3 | 25 | 000000000 | 00000 |
8-32 | |||||||||
1/4" | Fully Threaded | 0.332" | 0.100" | -40° to 210° | Clear | ASME B18.6.3 | 25 | 000000000 | 00000 |
3/8" | Fully Threaded | 0.332" | 0.100" | -40° to 210° | Clear | ASME B18.6.3 | 25 | 000000000 | 00000 |
1/2" | Fully Threaded | 0.332" | 0.100" | -40° to 210° | Clear | __ | 10 | 000000000 | 0000 |
3/4" | Fully Threaded | 0.312" | 0.100" | -40° to 210° | Clear | ASME B18.6.3 | 10 | 000000000 | 00000 |
10-24 | |||||||||
1/2" | Fully Threaded | 0.365" | 0.116" | -40° to 210° | Clear | ASME B18.6.3 | 10 | 000000000 | 00000 |
3/4" | Fully Threaded | 0.365" | 0.116" | -40° to 210° | Clear | ASME B18.6.3 | 10 | 000000000 | 00000 |
1" | Fully Threaded | 0.365" | 0.116" | -40° to 210° | Clear | ASME B18.6.3 | 10 | 000000000 | 00000 |
10-32 | |||||||||
1/4" | Fully Threaded | 0.385" | 0.116" | -40° to 210° | Clear | ASME B18.6.3 | 25 | 000000000 | 00000 |
3/8" | Fully Threaded | 0.385" | 0.116" | -40° to 210° | Clear | ASME B18.6.3 | 25 | 000000000 | 00000 |
1/2" | Fully Threaded | 0.385" | 0.116" | -40° to 210° | Clear | ASME B18.6.3 | 25 | 000000000 | 00000 |
5/8" | Fully Threaded | 0.385" | 0.116" | -40° to 210° | Clear | ASME B18.6.3 | 25 | 000000000 | 00000 |
3/4" | Fully Threaded | 0.385" | 0.116" | -40° to 210° | Clear | ASME B18.6.3 | 25 | 000000000 | 00000 |
1" | Fully Threaded | 0.385" | 0.116" | -40° to 210° | Clear | ASME B18.6.3 | 25 | 000000000 | 00000 |
1/4"-20 | |||||||||
1/2" | Fully Threaded | 0.507" | 0.153" | -40° to 210° | Clear | __ | 10 | 000000000 | 0000 |
5/8" | Fully Threaded | 0.507" | 0.153" | -40° to 210° | Clear | __ | 10 | 000000000 | 0000 |
3/4" | Fully Threaded | 0.507" | 0.153" | -40° to 210° | Clear | ASME B18.6.3 | 10 | 000000000 | 0000 |
1" | Fully Threaded | 0.507" | 0.153" | -40° to 210° | Clear | ASME B18.6.3 | 10 | 000000000 | 0000 |
1 1/4" | Fully Threaded | 0.507" | 0.153" | -40° to 210° | Clear | __ | 10 | 000000000 | 0000 |
1 1/2" | Fully Threaded | 0.507" | 0.153" | -40° to 210° | Clear | __ | 10 | 000000000 | 00000 |
2" | Fully Threaded | 0.48" | 0.153" | -40° to 210° | Clear | ASME B18.6.3 | 10 | 000000000 | 00000 |
2 1/2" | Fully Threaded | 0.48" | 0.153" | -40° to 210° | Clear | ASME B18.6.3 | 10 | 000000000 | 00000 |
3/8"-16 | |||||||||
1" | Fully Threaded | 0.725" | 0.230" | -40° to 210° | Clear | ASME B18.6.3 | 10 | 000000000 | 00000 |
1 1/2" | Fully Threaded | 0.725" | 0.230" | -40° to 210° | Clear | ASME B18.6.3 | 5 | 000000000 | 0000 |
2" | Fully Threaded | 0.725" | 0.230" | -40° to 210° | Clear | ASME B18.6.3 | 5 | 000000000 | 0000 |
Metric Impact-Resistant Polycarbonate Slotted Flat Head Screws

Polycarbonate screws resist breaking in high-impact applications better than other plastic screws. All are chemical and oil resistant, nonconductive, and lightweight. They’re angled under the head to sit flush within countersunk holes. Length is measured from the top of the head.
For technical drawings and 3-D models, click on a part number.
Lg., mm | Threading | Head Dia., mm | Head Ht., mm | Temperature Range, °F | Color | Specifications Met | Pkg. Qty. | Pkg. | |
Polycarbonate Plastic | |||||||||
---|---|---|---|---|---|---|---|---|---|
M3 × 0.5 mm | |||||||||
5 | Fully Threaded | 6.30 | 1.70 | -40° to 210° | Clear | ASME B18.6.7M | 25 | 000000000 | 00000 |
6 | Fully Threaded | 6.30 | 1.70 | -40° to 210° | Clear | ASME B18.6.7M | 25 | 000000000 | 0000 |
8 | Fully Threaded | 6.30 | 1.70 | -40° to 210° | Clear | ASME B18.6.7M | 25 | 000000000 | 00000 |
10 | Fully Threaded | 6.30 | 1.70 | -40° to 210° | Clear | ASME B18.6.7M | 25 | 000000000 | 00000 |
12 | Fully Threaded | 6.30 | 1.70 | -40° to 210° | Clear | ASME B18.6.7M | 25 | 000000000 | 00000 |
M4 × 0.7 mm | |||||||||
6 | Fully Threaded | 9.40 | 2.70 | -40° to 210° | Clear | ASME B18.6.7M | 25 | 000000000 | 00000 |
8 | Fully Threaded | 9.40 | 2.70 | -40° to 210° | Clear | ASME B18.6.7M | 25 | 000000000 | 00000 |
10 | Fully Threaded | 9.40 | 2.70 | -40° to 210° | Clear | ASME B18.6.7M | 25 | 000000000 | 00000 |
12 | Fully Threaded | 9.40 | 2.70 | -40° to 210° | Clear | ASME B18.6.7M | 25 | 000000000 | 00000 |
16 | Fully Threaded | 9.40 | 2.70 | -40° to 210° | Clear | ASME B18.6.7M | 10 | 000000000 | 0000 |
M5 × 0.8 mm | |||||||||
8 | Fully Threaded | 10.40 | 2.70 | -40° to 210° | Clear | ASME B18.6.7M | 10 | 000000000 | 0000 |
10 | Fully Threaded | 10.40 | 2.70 | -40° to 210° | Clear | ASME B18.6.7M | 10 | 000000000 | 0000 |
12 | Fully Threaded | 10.40 | 2.70 | -40° to 210° | Clear | ASME B18.6.7M | 10 | 000000000 | 0000 |
16 | Fully Threaded | 10.40 | 2.70 | -40° to 210° | Clear | ASME B18.6.7M | 10 | 000000000 | 0000 |
20 | Fully Threaded | 10.40 | 2.70 | -40° to 210° | Clear | ASME B18.6.7M | 10 | 000000000 | 0000 |
M6 × 1 mm | |||||||||
12 | Fully Threaded | 12.60 | 3.30 | -40° to 210° | Clear | ASME B18.6.7M | 10 | 000000000 | 0000 |
16 | Fully Threaded | 12.60 | 3.30 | -40° to 210° | Clear | ASME B18.6.7M | 10 | 000000000 | 00000 |
20 | Fully Threaded | 12.60 | 3.30 | -40° to 210° | Clear | ASME B18.6.7M | 10 | 000000000 | 00000 |
25 | Fully Threaded | 12.60 | 3.30 | -40° to 210° | Clear | ASME B18.6.7M | 10 | 000000000 | 00000 |
30 | Fully Threaded | 12.60 | 3.30 | -40° to 210° | Clear | ASME B18.6.7M | 5 | 000000000 | 0000 |
M8 × 1.25 mm | |||||||||
16 | Fully Threaded | 17.30 | 4.60 | -40° to 210° | Clear | ASME B18.6.7M | 5 | 000000000 | 0000 |
20 | Fully Threaded | 17.30 | 4.60 | -40° to 210° | Clear | ASME B18.6.7M | 5 | 000000000 | 0000 |
25 | Fully Threaded | 17.30 | 4.60 | -40° to 210° | Clear | ASME B18.6.7M | 5 | 000000000 | 0000 |
30 | Fully Threaded | 17.30 | 4.60 | -40° to 210° | Clear | ASME B18.6.7M | 5 | 000000000 | 0000 |
Plastic Press-Fit Low-Profile Binding Barrels and Caps
Plastic binding barrels are chemical resistant, nonconductive, and lightweight. The barrel is unthreaded for quick assembly with a press or a hammer. The barrel and cap have a low-profile for a nearly flush finish with the material surface. Barrel length is measured from under the head. Barrels and caps are sold separately.
Threaded caps have a slotted head for removal with a screwdriver.
For technical drawings and 3-D models, click on a part number.
Push/Pull Captive Panel Screws


Push the plunger to secure and pull to release for quick access. To install, press the grommet into a hole in the outer panel. Fasteners become a permanent part of the outer panel when installed, so they won't fall out. They meet UL 94 V-2 for flame retardance. Made from plastic, they're chemical resistant and lightweight. Length is measured from under the plunger head.
For technical drawings and 3-D models, click on a part number.
For Panel Thick. | For Panel Hole Dia. | Head | Material | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Max. Outer | Total | Inner | Outer | Dia. | Ht. | Lg. | Plunger | Grommet | Temperature Range, °F | Specifications Met | Color | Pkg. Qty. | Pkg. | |
0.042" | 0.056" to 0.153" | 0.189" | 0.18" | 0.25" | 0.266" | 11/32" | Nylon Plastic | Polycarbonate Plastic | -20° to 185° | UL 94 V-2 | Black | 10 | 000000000 | 000000 |
0.042" | 0.059" to 0.148" | 0.25" | 0.238" | 0.313" | 0.28" | 3/8" | Nylon Plastic | Polycarbonate Plastic | -20° to 185° | UL 94 V-2 | Black | 10 | 000000000 | 00000 |
0.042" | 0.059" to 0.148" | 0.316" | 0.294" | 0.375" | 0.3" | 3/8" | Nylon Plastic | Polycarbonate Plastic | -20° to 185° | UL 94 V-2 | Black | 10 | 000000000 | 00000 |
0.065" | 0.079" to 0.176" | 0.189" | 0.18" | 0.25" | 0.266" | 23/64" | Nylon Plastic | Polycarbonate Plastic | -20° to 185° | UL 94 V-2 | Black | 10 | 000000000 | 00000 |
0.065" | 0.084" to 0.173" | 0.25" | 0.238" | 0.313" | 0.28" | 25/64" | Nylon Plastic | Polycarbonate Plastic | -20° to 185° | UL 94 V-2 | Black | 10 | 000000000 | 00000 |
0.065" | 0.084" to 0.173" | 0.316" | 0.294" | 0.375" | 0.3" | 25/64" | Nylon Plastic | Polycarbonate Plastic | -20° to 185° | UL 94 V-2 | Black | 10 | 000000000 | 00000 |
0.098" | 0.112" to 0.209" | 0.189" | 0.18" | 0.25" | 0.266" | 25/64" | Nylon Plastic | Polycarbonate Plastic | -20° to 185° | UL 94 V-2 | Black | 10 | 000000000 | 00000 |
0.098" | 0.118" to 0.207" | 0.25" | 0.238" | 0.313" | 0.28" | 7/16" | Nylon Plastic | Polycarbonate Plastic | -20° to 185° | UL 94 V-2 | Black | 10 | 000000000 | 00000 |
0.098" | 0.118" to 0.207" | 0.316" | 0.294" | 0.375" | 0.3" | 7/16" | Nylon Plastic | Polycarbonate Plastic | -20° to 185° | UL 94 V-2 | Black | 10 | 000000000 | 00000 |
0.138" | 0.152" to 0.249" | 0.189" | 0.18" | 0.25" | 0.266" | 7/16" | Nylon Plastic | Polycarbonate Plastic | -20° to 185° | UL 94 V-2 | Black | 10 | 000000000 | 00000 |
0.162" | 0.182" to 0.271" | 0.25" | 0.238" | 0.313" | 0.28" | 1/2" | Nylon Plastic | Polycarbonate Plastic | -20° to 185° | UL 94 V-2 | Black | 10 | 000000000 | 00000 |
0.162" | 0.182" to 0.271" | 0.316" | 0.294" | 0.375" | 0.3" | 1/2" | Nylon Plastic | Polycarbonate Plastic | -20° to 185° | UL 94 V-2 | Black | 10 | 000000000 | 00000 |