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12 Sets 5/16-18 x 3-1/2" Black Carriage Bolts Screws and Hex Nuts & Flat Washers, 304 Stainless Steel 18-8, Round Head Square Neck, Full Thread Coverage
4.1 (27 items)
Limited Time SaleUntil the end
11
22
34
US$8.39 cheaper than the new price!!
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Used US$5.59
Product details
| Management number | 211257480 | Release Date | 2026/04/04 | List Price | US$5.59 | Model Number | 211257480 | ||
|---|---|---|---|---|---|---|---|---|---|
| Category | |||||||||
- Package Includes: 12 Pcs Carriage Bolts (5/16-18 x 3-1/2") + 12 Pcs Hex Nuts (5/16"-18)+ 12 Pcs 5/16" Inside Diameter Flat Washers
- Thread Size: 5/16-18; Thread Pitch: 18 TPI; Thread Type: Coarse Thread
- Material: 304 Stainless Steel (A2-70) with durable black coating; Provides enhanced strength and superior corrosion resistance compared to standard stainless steel or zinc-plated fasteners; Features smooth, burr-free surfaces with scratch-resistant protection during handling and installation; Maintains a uniform industrial-grade black finish for professional applications
- Bolt head diameter: 0.71 inch (18mm); Bolt head height: 0.17 inch (4.47mm); Bolt length (including the square neck): 3.5 inch (89mm)
- Carriage bolts feature a domed head with integrated square neck; The square neck mechanically locks into square receiver holes, preventing rotation; The polished dome head creates a semi-recessed installation profile, blending functional grip security with reduced surface protrusion for enhanced safety in woodworking, structural connections, and agricultural equipment applications
| Brand | Glvaner |
|---|---|
| Color | Black |
| Size Name | 5/16-18 x 3-1/2" |
| Unit Count | 12.0 Count |
| Thread Size | 5/16"-18 |
| Grade Rating | Grade A |
| Manufacturer | Glvaner |
| Fastener Type | Carriage Bolt |
| Screw Head Style | Round |
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