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About Socket Head Screws
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Plastic Socket Head Screws
Fully Threaded
These screws are chemical and oil resistant, nonconductive, and lightweight. Length is measured from under the head. Polypropylene screws resist grease, acids, and alkalies better than nylon screws. Unlike nylon, they won't absorb moisture.
Coarse threads are the industry standard; choose these screws if you don’t know the pitch or threads per inch. Fine threads are closely spaced to prevent loosening from vibration. They are not compatible with coarse threads.
Screws that meet ASME B18.3 comply with specifications for dimensional standards.
For technical drawings and 3-D models, click on a part number.
Head | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Threading | Thread Spacing  | Dia. | Ht. | Drive Size | Temp. Range, °F | Color | Specifications Met | Pkg. Qty. | Pkg. | |
Polypropylene Plastic | |||||||||||
2-56 | |||||||||||
| 3/16" | Fully Threaded | Coarse | 9/64" | 0.086" | 5/64" | -20° to 180° | Off-White | ASME B18.3, UL 94 HB | 10 | 000000000 | 00000 |
| 1/4" | Fully Threaded | Coarse | 9/64" | 0.086" | 5/64" | -20° to 180° | Off-White | ASME B18.3, UL 94 HB | 10 | 000000000 | 0000 |
| 1/2" | Fully Threaded | Coarse | 9/64" | 0.086" | 5/64" | -20° to 180° | Off-White | ASME B18.3, UL 94 HB | 10 | 000000000 | 0000 |
4-40 | |||||||||||
| 3/16" | Fully Threaded | Coarse | 0.183" | 0.112" | 3/32" | -20° to 180° | Off-White | ASME B18.3, UL 94 HB | 10 | 000000000 | 0000 |
| 1/4" | Fully Threaded | Coarse | 0.183" | 0.112" | 3/32" | -20° to 180° | Off-White | ASME B18.3, UL 94 HB | 10 | 000000000 | 0000 |
| 5/16" | Fully Threaded | Coarse | 0.183" | 0.112" | 3/32" | -20° to 180° | Off-White | ASME B18.3, UL 94 HB | 10 | 000000000 | 0000 |
| 3/8" | Fully Threaded | Coarse | 0.183" | 0.112" | 3/32" | -20° to 180° | Off-White | ASME B18.3, UL 94 HB | 10 | 000000000 | 0000 |
| 1/2" | Fully Threaded | Coarse | 0.183" | 0.112" | 3/32" | -20° to 180° | Off-White | ASME B18.3, UL 94 HB | 10 | 000000000 | 0000 |
| 3/4" | Fully Threaded | Coarse | 0.183" | 0.112" | 3/32" | -20° to 180° | Off-White | ASME B18.3, UL 94 HB | 10 | 000000000 | 0000 |
| 1" | Fully Threaded | Coarse | 0.183" | 0.112" | 3/32" | -20° to 180° | Off-White | ASME B18.3, UL 94 HB | 10 | 000000000 | 0000 |
| 1 1/2" | Fully Threaded | Coarse | 0.183" | 0.112" | 3/32" | -20° to 180° | Off-White | ASME B18.3, UL 94 HB | 10 | 000000000 | 0000 |
6-32 | |||||||||||
| 1/4" | Fully Threaded | Coarse | 0.226" | 0.138" | 7/64" | -20° to 210° | Off-White | __ | 10 | 000000000 | 0000 |
| 3/8" | Fully Threaded | Coarse | 0.226" | 0.138" | 7/64" | -20° to 210° | Off-White | __ | 10 | 000000000 | 0000 |
| 1/2" | Fully Threaded | Coarse | 0.226" | 0.138" | 7/64" | -20° to 210° | Off-White | __ | 10 | 000000000 | 0000 |
| 3/4" | Fully Threaded | Coarse | 0.226" | 0.138" | 7/64" | -20° to 210° | Off-White | __ | 10 | 000000000 | 0000 |
| 1" | Fully Threaded | Coarse | 0.226" | 0.138" | 7/64" | -20° to 210° | Off-White | __ | 10 | 000000000 | 0000 |
| 1 1/2" | Fully Threaded | Coarse | 0.226" | 0.138" | 7/64" | -20° to 180° | Off-White | ASME B18.3, UL 94 HB | 10 | 000000000 | 0000 |
8-32 | |||||||||||
| 1/4" | Fully Threaded | Coarse | 0.27" | 0.164" | 9/64" | -20° to 180° | Off-White | ASME B18.3, UL 94 HB | 10 | 000000000 | 0000 |
| 3/8" | Fully Threaded | Coarse | 0.27" | 0.164" | 9/64" | -20° to 210° | Off-White | __ | 10 | 000000000 | 0000 |
| 1/2" | Fully Threaded | Coarse | 0.27" | 0.164" | 9/64" | -20° to 210° | Off-White | __ | 10 | 000000000 | 0000 |
| 5/8" | Fully Threaded | Coarse | 0.27" | 0.164" | 9/64" | -20° to 210° | Off-White | __ | 10 | 000000000 | 0000 |
| 3/4" | Fully Threaded | Coarse | 0.27" | 0.164" | 9/64" | -20° to 210° | Off-White | __ | 10 | 000000000 | 0000 |
| 1" | Fully Threaded | Coarse | 0.27" | 0.164" | 9/64" | -20° to 210° | Off-White | __ | 10 | 000000000 | 0000 |
10-24 | |||||||||||
| 1/2" | Fully Threaded | Coarse | 5/16" | 0.19" | 5/32" | -20° to 180° | Off-White | ASME B18.3, UL 94 HB | 10 | 000000000 | 0000 |
| 1" | Fully Threaded | Coarse | 5/16" | 0.19" | 5/32" | -20° to 180° | Off-White | ASME B18.3, UL 94 HB | 10 | 000000000 | 0000 |
10-32 | |||||||||||
| 3/8" | Fully Threaded | Fine | 5/16" | 0.19" | 5/32" | -20° to 180° | Off-White | ASME B18.3, UL 94 HB | 10 | 000000000 | 0000 |
| 1/2" | Fully Threaded | Fine | 5/16" | 0.19" | 5/32" | -20° to 210° | Off-White | __ | 10 | 000000000 | 0000 |
| 5/8" | Fully Threaded | Fine | 5/16" | 0.19" | 5/32" | -20° to 180° | Off-White | ASME B18.3, UL 94 HB | 10 | 000000000 | 0000 |
| 3/4" | Fully Threaded | Fine | 5/16" | 0.19" | 5/32" | -20° to 210° | Off-White | __ | 10 | 000000000 | 0000 |
| 1" | Fully Threaded | Fine | 5/16" | 0.19" | 5/32" | -20° to 210° | Off-White | __ | 10 | 000000000 | 0000 |
| 1 1/4" | Fully Threaded | Fine | 5/16" | 0.19" | 5/32" | -20° to 210° | Off-White | __ | 10 | 000000000 | 0000 |
| 1 1/2" | Fully Threaded | Fine | 5/16" | 0.19" | 5/32" | -20° to 210° | Off-White | __ | 10 | 000000000 | 0000 |
| 2" | Fully Threaded | Fine | 5/16" | 0.19" | 5/32" | -20° to 210° | Off-White | __ | 10 | 000000000 | 0000 |
1/4"-20 | |||||||||||
| 1/4" | Fully Threaded | Coarse | 3/8" | 1/4" | 3/16" | -20° to 180° | Off-White | ASME B18.3, UL 94 HB | 10 | 000000000 | 0000 |
| 1/2" | Fully Threaded | Coarse | 3/8" | 1/4" | 3/16" | -20° to 180° | Off-White | ASME B18.3, UL 94 HB | 10 | 000000000 | 0000 |
| 5/8" | Fully Threaded | Coarse | 3/8" | 1/4" | 3/16" | -20° to 210° | Off-White | __ | 10 | 000000000 | 0000 |
| 3/4" | Fully Threaded | Coarse | 3/8" | 1/4" | 3/16" | -20° to 210° | Off-White | __ | 10 | 000000000 | 0000 |
| 7/8" | Fully Threaded | Coarse | 3/8" | 1/4" | 3/16" | -20° to 210° | Off-White | __ | 10 | 000000000 | 0000 |
| 1" | Fully Threaded | Coarse | 3/8" | 1/4" | 3/16" | -20° to 210° | Off-White | __ | 10 | 000000000 | 0000 |
| 1 1/4" | Fully Threaded | Coarse | 3/8" | 1/4" | 3/16" | -20° to 210° | Off-White | __ | 10 | 000000000 | 0000 |
| 1 1/2" | Fully Threaded | Coarse | 3/8" | 1/4" | 3/16" | -20° to 210° | Off-White | __ | 10 | 000000000 | 0000 |
| 1 3/4" | Fully Threaded | Coarse | 3/8" | 1/4" | 3/16" | -20° to 180° | Off-White | ASME B18.3, UL 94 HB | 10 | 000000000 | 0000 |
| 2" | Fully Threaded | Coarse | 3/8" | 1/4" | 3/16" | -20° to 210° | Off-White | __ | 10 | 000000000 | 0000 |
| 2 1/2" | Fully Threaded | Coarse | 3/8" | 1/4" | 3/16" | -20° to 180° | Off-White | ASME B18.3, UL 94 HB | 10 | 000000000 | 0000 |
| 3" | Fully Threaded | Coarse | 3/8" | 1/4" | 3/16" | -20° to 180° | Off-White | ASME B18.3, UL 94 HB | 10 | 000000000 | 0000 |
5/16"-18 | |||||||||||
| 1" | Fully Threaded | Coarse | 15/32" | 5/16" | 1/4" | -20° to 180° | Off-White | ASME B18.3, UL 94 HB | 10 | 000000000 | 0000 |
3/8"-16 | |||||||||||
| 1/2" | Fully Threaded | Coarse | 9/16" | 3/8" | 5/16" | -20° to 180° | Off-White | ASME B18.3, UL 94 HB | 10 | 000000000 | 0000 |
| 3/4" | Fully Threaded | Coarse | 9/16" | 3/8" | 5/16" | -20° to 180° | Off-White | ASME B18.3, UL 94 HB | 10 | 000000000 | 0000 |
| 1" | Fully Threaded | Coarse | 9/16" | 3/8" | 5/16" | -20° to 180° | Off-White | ASME B18.3, UL 94 HB | 10 | 000000000 | 0000 |
M3 × 0.5mm | |||||||||||
| 5mm | Fully Threaded | Coarse | 5.5mm | 3mm | 2.5 mm | -20° to 180° | Off-White | DIN 912, UL 94 HB | 10 | 000000000 | 0000 |
| 6mm | Fully Threaded | Coarse | 5.5mm | 3mm | 2.5 mm | -20° to 180° | Off-White | DIN 912, UL 94 HB | 10 | 000000000 | 0000 |
M4 × 0.7mm | |||||||||||
| 8mm | Fully Threaded | Coarse | 7mm | 4mm | 3 mm | -20° to 180° | Off-White | DIN 912, UL 94 HB | 10 | 000000000 | 0000 |
| 10mm | Fully Threaded | Coarse | 7mm | 4mm | 3 mm | -20° to 180° | Off-White | DIN 912, UL 94 HB | 10 | 000000000 | 0000 |
| 12mm | Fully Threaded | Coarse | 7mm | 4mm | 3 mm | -20° to 180° | Off-White | DIN 912, UL 94 HB | 10 | 000000000 | 0000 |
| 14mm | Fully Threaded | Coarse | 7mm | 4mm | 3 mm | -20° to 180° | Off-White | DIN 912, UL 94 HB | 10 | 000000000 | 0000 |
| 16mm | Fully Threaded | Coarse | 7mm | 4mm | 3 mm | -20° to 180° | Off-White | DIN 912, UL 94 HB | 10 | 000000000 | 0000 |
M5 × 0.8mm | |||||||||||
| 10mm | Fully Threaded | Coarse | 8.5mm | 5mm | 4 mm | -20° to 180° | Off-White | DIN 912, UL 94 HB | 10 | 000000000 | 0000 |
| 12mm | Fully Threaded | Coarse | 8.5mm | 5mm | 4 mm | -20° to 180° | Off-White | DIN 912, UL 94 HB | 10 | 000000000 | 0000 |
| 20mm | Fully Threaded | Coarse | 8.5mm | 5mm | 4 mm | -20° to 180° | Off-White | DIN 912, UL 94 HB | 10 | 000000000 | 0000 |
| 25mm | Fully Threaded | Coarse | 8.5mm | 5mm | 4 mm | -20° to 180° | Off-White | DIN 912, UL 94 HB | 10 | 000000000 | 0000 |
M6 × 1mm | |||||||||||
| 12mm | Fully Threaded | Coarse | 10mm | 6mm | 5 mm | -20° to 180° | Off-White | DIN 912, UL 94 HB | 10 | 000000000 | 0000 |
| 20mm | Fully Threaded | Coarse | 10mm | 6mm | 5 mm | -20° to 180° | Off-White | DIN 912, UL 94 HB | 10 | 000000000 | 0000 |
| 25mm | Fully Threaded | Coarse | 10mm | 6mm | 5 mm | -20° to 180° | Off-White | DIN 912, UL 94 HB | 10 | 000000000 | 0000 |
| 30mm | Fully Threaded | Coarse | 10mm | 6mm | 5 mm | -20° to 180° | Off-White | DIN 912, UL 94 HB | 10 | 000000000 | 0000 |
M8 × 1.25mm | |||||||||||
| 16mm | Fully Threaded | Coarse | 13mm | 8mm | 6 mm | -20° to 180° | Off-White | DIN 912, UL 94 HB | 10 | 000000000 | 0000 |
| 20mm | Fully Threaded | Coarse | 13mm | 8mm | 6 mm | -20° to 180° | Off-White | DIN 912, UL 94 HB | 10 | 000000000 | 0000 |
| 25mm | Fully Threaded | Coarse | 13mm | 8mm | 6 mm | -20° to 180° | Off-White | DIN 912, UL 94 HB | 10 | 000000000 | 0000 |
| 35mm | Fully Threaded | Coarse | 13mm | 8mm | 6 mm | -20° to 180° | Off-White | DIN 912, UL 94 HB | 10 | 000000000 | 0000 |