Cold Headers supplies alloy steel socket head cap screws in a wide range of diameters, thread sizes, and lengths for high-strength industrial fastening applications. These internal hex fasteners are commonly used in machine building, tooling, fixture construction, automation systems, material handling equipment, maintenance repair, and precision assemblies where compact head geometry and reliable socket engagement are important.
Our online catalog includes many commonly requested alloy steel socket head cap screw sizes, but it does not represent every configuration we can supply. Additional non-catalog sizes, special lengths, and difficult-to-source items may be available by request.
If the exact alloy steel socket head cap screw required for your application is not shown, there is a good chance we can still quote or supply it.
Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.
Item # |
Item Name |
Diameter |
Length |
Material |
Quantity |
List Price (per 100 pieces) |
|---|---|---|---|---|---|---|
| 3-56 x 5/16 SHCS Alloy-Steel /Asset/True Alloy Steel Socket Head Cap Screw.png | N/A 3-56 x 5/16 Alloy Steel Socket Head Cap Screw | Diameter N/A 3-56 | Length N/A 5/16 in | Material N/A Alloy Steel | Quantity N/A 100 | $19.00 |
| 3-56 x 3/8 SHCS Alloy-Steel /Asset/True Alloy Steel Socket Head Cap Screw.png | N/A 3-56 x 3/8 Alloy Steel Socket Head Cap Screw | Diameter N/A 3-56 | Length N/A 3/8 in | Material N/A Alloy Steel | Quantity N/A 100 | $17.50 |
| 3-56 x 7/16 SHCS Alloy-Steel /Asset/True Alloy Steel Socket Head Cap Screw.png | N/A 3-56 x 7/16 Alloy Steel Socket Head Cap Screw | Diameter N/A 3-56 | Length N/A 7/16 in | Material N/A Alloy Steel | Quantity N/A 100 | Call or Email for Pricing |
| 3-56 x 1/2 SHCS Alloy-Steel /Asset/True Alloy Steel Socket Head Cap Screw.png | N/A 3-56 x 1/2 Alloy Steel Socket Head Cap Screw | Diameter N/A 3-56 | Length N/A 1/2 in | Material N/A Alloy Steel | Quantity N/A 100 | $19.50 |
| 3-56 x 5/8 SHCS Alloy-Steel /Asset/True Alloy Steel Socket Head Cap Screw.png | N/A 3-56 x 5/8 Alloy Steel Socket Head Cap Screw | Diameter N/A 3-56 | Length N/A 5/8 in | Material N/A Alloy Steel | Quantity N/A 100 | $20.00 |
| 3-56 x 3/4 SHCS Alloy-Steel /Asset/True Alloy Steel Socket Head Cap Screw.png | N/A 3-56 x 3/4 Alloy Steel Socket Head Cap Screw | Diameter N/A 3-56 | Length N/A 3/4 in | Material N/A Alloy Steel | Quantity N/A 100 | $28.00 |
| 3-56 x 7/8 SHCS Alloy-Steel /Asset/True Alloy Steel Socket Head Cap Screw.png | N/A 3-56 x 7/8 Alloy Steel Socket Head Cap Screw | Diameter N/A 3-56 | Length N/A 7/8 in | Material N/A Alloy Steel | Quantity N/A 100 | Call or Email for Pricing |
| 3-56 x 1 SHCS Alloy-Steel /Asset/True Alloy Steel Socket Head Cap Screw.png | N/A 3-56 x 1 Alloy Steel Socket Head Cap Screw | Diameter N/A 3-56 | Length N/A 1 in | Material N/A Alloy Steel | Quantity N/A 100 | $29.00 |
| 3-56 x 1 1/4 SHCS Alloy-Steel /Asset/True Alloy Steel Socket Head Cap Screw.png | N/A 3-56 x 1 1/4 Alloy Steel Socket Head Cap Screw | Diameter N/A 3-56 | Length N/A 1 1/4 in | Material N/A Alloy Steel | Quantity N/A 100 | Call or Email for Pricing |
| 4-40 x 1/8 SHCS Alloy-Steel /Asset/True Alloy Steel Socket Head Cap Screw.png | N/A 4-40 x 1/8 Alloy Steel Socket Head Cap Screw | Diameter N/A 4-40 | Length N/A 1/8 in | Material N/A Alloy Steel | Quantity N/A 100 | $7.00 |
| 4-40 x 3/16 SHCS Alloy-Steel /Asset/True Alloy Steel Socket Head Cap Screw.png | N/A 4-40 x 3/16 Alloy Steel Socket Head Cap Screw | Diameter N/A 4-40 | Length N/A 3/16 in | Material N/A Alloy Steel | Quantity N/A 100 | $4.50 |
| 4-40 x 1/4 SHCS Alloy-Steel /Asset/True Alloy Steel Socket Head Cap Screw.png | N/A 4-40 x 1/4 Alloy Steel Socket Head Cap Screw | Diameter N/A 4-40 | Length N/A 1/4 in | Material N/A Alloy Steel | Quantity N/A 100 | $2.36 |
| 4-40 x 5/16 SHCS Alloy-Steel /Asset/True Alloy Steel Socket Head Cap Screw.png | N/A 4-40 x 5/16 Alloy Steel Socket Head Cap Screw | Diameter N/A 4-40 | Length N/A 5/16 in | Material N/A Alloy Steel | Quantity N/A 100 | $2.43 |
| 4-40 x 3/8 SHCS Alloy-Steel /Asset/True Alloy Steel Socket Head Cap Screw.png | N/A 4-40 x 3/8 Alloy Steel Socket Head Cap Screw | Diameter N/A 4-40 | Length N/A 3/8 in | Material N/A Alloy Steel | Quantity N/A 100 | $2.50 |
| 4-40 x 7/16 SHCS Alloy-Steel /Asset/True Alloy Steel Socket Head Cap Screw.png | N/A 4-40 x 7/16 Alloy Steel Socket Head Cap Screw | Diameter N/A 4-40 | Length N/A 7/16 in | Material N/A Alloy Steel | Quantity N/A 100 | $8.00 |
| 4-40 x 1/2 SHCS Alloy-Steel /Asset/True Alloy Steel Socket Head Cap Screw.png | N/A 4-40 x 1/2 Alloy Steel Socket Head Cap Screw | Diameter N/A 4-40 | Length N/A 1/2 in | Material N/A Alloy Steel | Quantity N/A 100 | $2.60 |
| 4-40 x 5/8 SHCS Alloy-Steel /Asset/True Alloy Steel Socket Head Cap Screw.png | N/A 4-40 x 5/8 Alloy Steel Socket Head Cap Screw | Diameter N/A 4-40 | Length N/A 5/8 in | Material N/A Alloy Steel | Quantity N/A 100 | $2.68 |
| 4-40 x 3/4 SHCS Alloy-Steel /Asset/True Alloy Steel Socket Head Cap Screw.png | N/A 4-40 x 3/4 Alloy Steel Socket Head Cap Screw | Diameter N/A 4-40 | Length N/A 3/4 in | Material N/A Alloy Steel | Quantity N/A 100 | $2.71 |
| 4-40 x 7/8 SHCS Alloy-Steel /Asset/True Alloy Steel Socket Head Cap Screw.png | N/A 4-40 x 7/8 Alloy Steel Socket Head Cap Screw | Diameter N/A 4-40 | Length N/A 7/8 in | Material N/A Alloy Steel | Quantity N/A 100 | $5.50 |
| 4-40 x 1 SHCS Alloy-Steel /Asset/True Alloy Steel Socket Head Cap Screw.png | N/A 4-40 x 1 Alloy Steel Socket Head Cap Screw | Diameter N/A 4-40 | Length N/A 1 in | Material N/A Alloy Steel | Quantity N/A 100 | $6.00 |
| 4-40 x 1 1/4 SHCS Alloy-Steel /Asset/True Alloy Steel Socket Head Cap Screw.png | N/A 4-40 x 1 1/4 Alloy Steel Socket Head Cap Screw | Diameter N/A 4-40 | Length N/A 1 1/4 in | Material N/A Alloy Steel | Quantity N/A 100 | $7.00 |
| 4-40 x 1 1/2 SHCS Alloy-Steel /Asset/True Alloy Steel Socket Head Cap Screw.png | N/A 4-40 x 1 1/2 Alloy Steel Socket Head Cap Screw | Diameter N/A 4-40 | Length N/A 1 1/2 in | Material N/A Alloy Steel | Quantity N/A 100 | $8.50 |
| 4-40 x 1 3/4 SHCS Alloy-Steel /Asset/True Alloy Steel Socket Head Cap Screw.png | N/A 4-40 x 1 3/4 Alloy Steel Socket Head Cap Screw | Diameter N/A 4-40 | Length N/A 1 3/4 in | Material N/A Alloy Steel | Quantity N/A 100 | $40.00 |
| 4-40 x 2 SHCS Alloy-Steel /Asset/True Alloy Steel Socket Head Cap Screw.png | N/A 4-40 x 2 Alloy Steel Socket Head Cap Screw | Diameter N/A 4-40 | Length N/A 2 in | Material N/A Alloy Steel | Quantity N/A 100 | $45.00 |
| 4-40 x 2 1/4 SHCS Alloy-Steel /Asset/True Alloy Steel Socket Head Cap Screw.png | N/A 4-40 x 2 1/4 Alloy Steel Socket Head Cap Screw | Diameter N/A 4-40 | Length N/A 2 1/4 in | Material N/A Alloy Steel | Quantity N/A 100 | Call or Email for Pricing |
