Description
SSC-2-56-3/16-A2 Socket Cap Head Screw 2-56 UNC x 3/16 in SS A2 — BOLTON SKU 69174.
About the SSC-2-56-3/16-A2 Cap Screw, 2-56 UNC
This is an inch-series hexagon socket head cap screw. The designation resolves as SSC (stainless socket cap), a #2-56 UNC thread, a nominal length of 3/16 in and A2 austenitic stainless steel. The #2 size has a 0.086 in (2.18 mm) major diameter with 56 threads per inch in the UNC coarse series, and the 3/16 in length equals 4.76 mm under the head. Screws of this pattern have a plain cylindrical head with an internal hexagon drive; under ASME B18.3, the inch socket cap screw standard, the #2 size uses a 5/64 in hexagon key. A2 is the general-purpose 18/8 austenitic stainless grade, chosen where a non-magnetic, corrosion-resistant fastener is preferred to plated carbon steel. Note that this is an inch-series thread and will not interchange with a metric M2 screw of similar appearance, so the UNC callout should be carried through on drawings and spares lists.
Key specifications
| Attribute | Value |
|---|---|
| Part reference | SSC-2-56-3/16-A2 |
| Head form | Hexagon socket cap (cylindrical head) |
| Thread | #2-56 UNC (0.086 in major diameter, 56 TPI) |
| Length | 3/16 in (4.76 mm) |
| Hexagon key size | 5/64 in (per ASME B18.3 for the #2 size) |
| Material | A2 austenitic stainless steel |
Typical applications
At #2-56 and only 3/16 in long, this screw is a miniature fixing for thin panels, instrument covers, small brackets, PCB standoffs and light electro-mechanical assemblies where a socket head can be driven in a recess or counterbore. The stainless grade suits equipment exposed to humidity, wash-down or coastal air, and the non-magnetic character of A2 is useful near sensors and magnetometers.
Supplied by BOLTON Technical Equipment Supplies against request for quotation. Add this item to your RFQ basket to request pricing, lead time and documentation requirements (e.g. CoC, datasheets or test reports where applicable).
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