Product Description
3/8″ UNF A2 Stainless Steel Hex Bolt, Nut & Washer Kit – 180 Pieces
An 180-piece assortment of 3/8″ UNF A2 stainless steel hexagon head bolts with matching full nuts, Nyloc nuts, flat washers and spring washers. Four bolt lengths provide a useful selection for assembly, maintenance and repair work.
The bolts and nuts have a 3/8″-24 UNF imperial fine thread. Check the diameter and thread pitch of the mating component before fitting.
Specifications
| Total contents | 180 pieces |
|---|---|
| Material | A2 stainless steel; Nyloc nuts include a nylon locking insert |
| Nominal thread diameter | 3/8″ — 9.525mm |
| Thread type | UNF — Unified National Fine |
| Threads per inch | 24 TPI |
| Bolt head | External hexagon |
| Bolt spanner size | 9/16″ across flats |
| Nut types | Hexagon full nuts and Nyloc nuts |
| Washer types | Flat washers and spring washers |
| Packaging | Assortment box |
Bolt Lengths Included
| Imperial Length | Metric Equivalent |
|---|---|
| 1″ | 25.4mm |
| 1 1/4″ | 31.75mm |
| 1 1/2″ | 38.1mm |
| 2″ | 50.8mm |
Bolt length is measured from beneath the head to the tip. The total of 180 pieces includes bolts, nuts and washers.
Key Features
- A2 stainless steel components for corrosion resistance in general environments.
- Four bolt lengths in one assortment.
- Matching full nuts and nylon insert locking nuts.
- Flat and spring washers included.
- Imperial fine threads for compatible UNF assemblies.
Typical Applications
Imperial-thread machinery, vehicle restoration, workshop maintenance and general assemblies requiring 3/8″ UNF stainless steel fixings.
Installation
Match the 3/8″-24 UNF thread and select a bolt length that provides suitable engagement. Start nuts by hand and tighten steadily using correctly fitting tools. Use an appropriate stainless steel anti-seize compound where specified, allowing for its effect on tightening torque.
Standards
Thread reference: ASME B1.1 for Unified inch threads. ASME B18.2.1 is the dimensional reference for the hexagon bolts. Specific dimensional standards for the kit’s nuts and washers have not been verified.
