Product Description
134-Piece UNF A2 Stainless Steel Hex Head Set Screw & Nut Assortment
An assortment of fully threaded hexagon head set screws and matching full nuts in A2 stainless steel. Contains 67 screws across eight sizes, each supplied with a nut.
Specifications
- Material: A2 stainless steel.
- Thread type: UNF.
- Head style: hexagon.
- Screws: fully threaded.
- Nut type: hexagon full nut.
- Total: 134 pieces comprising 67 screws and 67 nuts.
Pack Contents
| Thread Size | Screw Length | Screw Quantity | Matching Nut Quantity |
|---|---|---|---|
| 3/16" UNF | 3/4" | 10 | 10 |
| 1/4" UNF | 1/2" | 10 | 10 |
| 1/4" UNF | 5/8" | 10 | 10 |
| 1/4" UNF | 3/4" | 10 | 10 |
| 5/16" UNF | 3/4" | 10 | 10 |
| 5/16" UNF | 7/8" | 8 | 8 |
| 5/16" UNF | 1" | 6 | 6 |
| 3/8" UNF | 1 1/4" | 3 | 3 |
Hex Head Dimensions
Reference dimensions for ASME B18.2.1 hexagon head set screws in the sizes shown below. Head heights are in inches.
| Thread Size | Spanner Size Across Flats | Head Height |
|---|---|---|
| 1/4" UNF | 7/16" | 0.150–0.188 |
| 5/16" UNF | 1/2" | 0.195–0.235 |
| 3/8" UNF | 9/16" | 0.226–0.268 |
Packaging Options
Available in a plastic storage box with dividers and a clip-down lid, or as a refill pack without a box.
Measuring & Fitting
Screw length is measured from beneath the hexagon head to the end of the screw. Match the thread before fitting and start the nut by hand to avoid cross-threading. Tighten stainless steel fasteners steadily and avoid excessive speed to help reduce galling.
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