Hex Socket Cap Head SEMS Screw with Plain Washer
Cap head, hex socket, plain washer. M2 x 0.4 to M10 x 1.5, 316 stainless.
Image is a rendering of this SEMS screw, made from its data sheet dimensions.
SEMS Screws
Hex Socket Cap Head SEMS Screw with Small Plain Washer and Lock Washer
SEMS screw: small plain washer and split lock washer held captive under the head. M2.5 x 0.45 to M4 x 0.7, 316 stainless steel.
- Section
- SEMS screws
- Part no.
- SG-SEMS-SCSPL
- Material
- Stainless steel
- Units
- Metric
Overview
A cap head SEMS screw with a hex socket and a small plain washer and split lock washer held captive under the head. The washer is fitted before the thread is rolled, so it cannot fall off: the screw and washer go in as one part, which saves time on the line and stops loose washers getting lost in equipment.
Made in 316 stainless steel (A4), passivated or chemi-black. Head dimensions to BS EN ISO 4762 / DIN 912, lock washer BS 4464. Sizes M2.5 x 0.45 to M4 x 0.7.
Specifications
| Brand | S&G |
|---|---|
| Part no. series | SG-SEMS-SCSPL |
| Head | Cap head, hex socket |
| Washers | Small plain washer and split lock washer, held captive |
| Standards | BS EN ISO 4762 / DIN 912, lock washer BS 4464 |
| Material | 316 stainless steel (A4) |
| Finish | Passivated or chemi-black |
| Threads | M2.5 x 0.45, M3 x 0.5, M4 x 0.7 |
| Units | Metric (class 6g threads) |
Sizes & part numbers
E is the washer stack in the compressed state. Values in mm. D is the plain washer outside diameter, max./min.
| Part no. | Thread T | A head Ø (mm) | B head ht (mm) | C socket | D washer Ø (mm) | E (mm) | F (mm) | Standard L1 (mm) |
|---|---|---|---|---|---|---|---|---|
| SG-SEMS-SCSPL-M2.5 | M2.5 x 0.45 | 4.5 | 2.5 | 2 | 5.0/4.7 | 1.1 | 2.1 | 6, 8, 10, 12, 16, 20 |
| SG-SEMS-SCSPL-M3 | M3 x 0.5 | 5.5 | 3.0 | 2.5 | 6.0/5.7 | 1.3 | 2.6 | 6, 8, 10, 12, 16, 20, 25, 30 |
| SG-SEMS-SCSPL-M4 | M4 x 0.7 | 7.0 | 4.0 | 3 | 8.0/7.6 | 1.4 | 3.3 | 8, 10, 12, 16, 20, 25, 30 |
How to order
Quote the part number with the underhead length L1, for example SG-SEMS-SCSPL-M3 × 16 mm, and the finish: passivated or black. Other lengths are made to order.
Key features
- Washer held captive: screw and washer fitted as one part
- No loose washers to drop into equipment
- 316 stainless steel for corrosion resistance
- Passivated or black finish
Applications
Electronic enclosuresControl panelsInstrumentsMarine & food equipmentRail & defence
Need a length, thread or washer not listed?Other lengths and combinations are made to order. Send us the part number or your drawing.Send enquiry
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