Product Description
320-Piece 1/4" UNF Zinc Plated Bolt, Nut & Washer Assortment
A 320-piece assortment of 1/4" UNF zinc plated fasteners, including Grade 5 high tensile fully threaded hexagon head bolts in four lengths, full nuts, Nyloc nuts, flat washers and spring washers.
A useful selection for workshop repairs, maintenance and restoration work requiring imperial fine threads. Choose the complete boxed set for organised storage or the refill pack to replenish your existing assortment.
Specifications
- Total Contents: 320 pieces
- Bolt Material: Grade 5 high tensile steel
- Finish: Zinc plated
- Thread Size: 1/4"-28 UNF
- Thread Type: Unified National Fine, right hand
- Threads Per Inch: 28 TPI
- Bolt Head: Hexagon
- Thread Coverage: Fully threaded
- Bolt Lengths: 1/2", 5/8", 3/4" and 1"
- Nut Types: Hexagon full nuts and nylon insert Nyloc nuts
- Washer Types: Flat washers and spring washers
Assortment Contents
| Component | Size | Quantity |
|---|---|---|
| Grade 5 Fully Threaded Hex Head Bolts | 1/4" UNF × 1/2" | 20 |
| Grade 5 Fully Threaded Hex Head Bolts | 1/4" UNF × 5/8" | 20 |
| Grade 5 Fully Threaded Hex Head Bolts | 1/4" UNF × 3/4" | 20 |
| Grade 5 Fully Threaded Hex Head Bolts | 1/4" UNF × 1" | 20 |
| Hexagon Full Nuts | 1/4" UNF | 55 |
| Nyloc Nuts | 1/4" UNF | 25 |
| Flat Washers | 1/4" | 80 |
| Spring Washers | 1/4" | 80 |
| Total Pieces | 320 | |
Complete Set or Refill Pack
- Complete Set: Supplied in a plastic storage box with dividers and a clip-down lid.
- Refill Pack: Supplied in individual plastic bags, without the storage box.
Measuring and Fitting
Bolt lengths are measured from beneath the hexagon head to the end of the bolt. Choose a length that provides sufficient engagement with the matching nut or tapped hole.
Match the 1/4"-28 UNF thread, start threaded components by hand and tighten with a correctly fitting imperial spanner or socket. When fitting a Nyloc nut, ensure the bolt passes through the nylon locking insert.
Related Products
Browse our nuts, washers and tools and accessories. For help identifying imperial threads, see our thread data guide.
