Description
Hexagon Head Screw M8x30 SS 316 — BOLTON SKU 56552.
About the Hexagon Head Screw M8x30 SS 316
The SS 316 screw M8x30 hexagon head is an externally driven fastener with an M8 thread and a 30 mm nominal length, made in 316 stainless steel. The thread is the 1.25 mm coarse pitch standard for M8. Type 316 is the molybdenum-bearing austenitic stainless grade — the composition family that the ISO fastener designation A4 refers to — and it is chosen over 304 or A2 material where chlorides from seawater, salt air or cleaning chemicals would cause pitting. The hexagon head is turned with a spanner or socket rather than a key or driver, which suits open joints where a tool can be swung freely. The dimensional standard is not stated on this part record, so whether the screw is supplied fully threaded to ISO 4017 or with a plain shank to ISO 4014 should be confirmed at enquiry.
Key specifications
| Head form | Hexagon head, external drive |
|---|---|
| Thread | M8 x 1.25 coarse |
| Nominal length | 30 mm |
| Material | 316 stainless steel (A4 composition family) |
| Drive | Spanner or socket on head flats |
Typical applications
General assembly fixing for M8 joints in marine, coastal and process environments where 316 material is called up in the specification — deck and jetty hardware, pump and valve mountings, washdown areas and outdoor structures. The 30 mm length covers modest grip stacks in plate and section. Usually ordered with matching 316 or A4 nuts and washers so the complete joint is one grade.
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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