Hex socket head cap screw(Fine Steel Unplated 20X30(P-1.5 Pitch 2.5
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This is a bolt with a hexagonal socket in a cylindrical head.
A hex key (Allen wrench) is used for tightening. Although classified as a bolt, it is in most cases used without a nut.
It is also known as a cap screw or socket screw. Open-end spanners and wrenches used to tighten hex bolts require working space around them, whereas a hex key requires no such space.
For this reason, the use of hex socket head cap screws enables work in confined spaces and contributes to the miniaturization of machinery.
Due to their appearance, they are increasingly being used for decorative purposes as well.
Cap Bolts
This is a bolt with a hexagonal socket in a cylindrical head.
A hex key (Allen wrench) is used for tightening. Although classified as a bolt, it is in most cases used without a nut.
It is also known as a cap screw or socket screw. Open-end spanners and wrenches used to tighten hex bolts require working space around them, whereas a hex key requires no such space.
For this reason, the use of hex socket head cap screws enables work in confined spaces and contributes to the miniaturization of machinery.
Due to their appearance, they are increasingly being used for decorative purposes as well.
Cap Bolts
Product Details
- Hex socket head cap screw Fine
- Nominal diameter (d) M20
- Length under head (ℓ) 30.0
- Pitch 1.5
- Thread length (b)※ Reference 52
- Head diameter (dk) Nominal (basic dimension) 30.00 Max 30.33 Min 29.67
- Body diameter (ds) Max 20.00 Min 19.67
- Hex socket width across corners (e) Min 19.437
- Head height (k) Max 20.00 Min 19.48
- Hex socket width across flats (s) Nominal 17
- Hex socket depth (t) Min 10
- Under-socket head height (w) Min 8.6
- ※Stainless steel versions are full thread.
Hex socket head cap screw(Fine Steel Unplated 20X30(P-1.5 Pitch 2.5
| Steel | Unplated | 20X30(P-1.5 | Individual sale | View Details |
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