1/4-20 x 3-1/2 Inch Carriage Bolt Kit, 304 Stainless Steel (18-8) with Hex Nuts & Flat Washers - 10 Sets, Round Head Square Neck, Full Thread Coverage by Glvaner
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- Ready to Use – Save Time & Effort: This complete 10-piece set includes 10 precisely matched 1/4-20 x 3-1/2" Carriage Bolts, 10 Hex Nuts, and 10 Flat Washers; No more separate purchases or surprise missing parts—get everything you need to start and finish your project efficiently
- Engineered from Grade A2-70 304 (18-8) Stainless Steel, these fasteners deliver significantly greater corrosion resistance and strength compared to zinc-plated or lower-grade alternatives. Designed to perform reliably in both indoor and demanding outdoor environments
- Precision Machining – For a Smooth, Flawless Fit: Every bolt is manufactured to meet ANSI B18.5 standards, ensuring consistent quality, precise threads, and accurate dimensions. This ensures smooth installation, prevents cross-threading, and delivers a secure, reliable fit in every application
- Full Thread Design & Locking Square Neck – Unmatched Strength & Easy Installation: Featuring Full Thread Coverage from neck to tip for maximum nut engagement and superior strength. Moreover, the integrated square neck is designed to bite securely into wood, preventing the bolt from spinning during nut tightening—saving you time and frustration. This robust combination ensures a vibration-resistant and permanently secure connection
- Versatile, Heavy-Duty Fastening Solution: Perfect for a wide range of critical applications. From securing deck boards to joists and reinforcing trailer beds and ramps, to building fences, pergolas, and outdoor furniture. Also ideal for agricultural equipment repair, workshop jigs, playground structures, and securing ledger boards to framing. Designed to provide a secure, permanent connection where strength and reliability matter most
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Estimated shipping
Select a product to estimate shipping.304 Stainless Steel Carriage Bolt Kit
Rust-Proof & Corrosion Resistant
For Outdoor, Deck, Fence, Furniture & General Hardware
Each bolt features smooth, burr-free threads machined to strict ANSI standards.
No cross-threading, jamming, or misalignment issues — 100% compatible with included hex nuts.
Strict thread gauge inspection ensures consistent pitch and diameter, eliminating the frustration of ill-fitting hardware.
Each kit undergoes multiple quantity & quality inspections to ensure complete sets with no missing or damaged parts.
Neat, organized packaging protects hardware during shipping and makes storage simple.
Ready to use right out of the package — no surprises, no shortages, no hassle
Are these real 304 stainless steel?
Yes. These are made of high-quality 304 (18-8) stainless steel, tested to resist rust and corrosion in outdoor and damp environments
Does each set include nut and washer?
Yes. Every set comes with a matched hex nut and flat washer, no additional parts needed
Can these be used on wood?
Yes. The round head distributes pressure and protects wood, ideal for decks, fences, and furniture.
What is the square neck for?
The square neck prevents the bolt from spinning when tightening the nut, making installation fast and easy.
What tools do I need for installation?
Just a wrench or socket to tighten the hex nut. No special tools required.
Product details
| Main Specification | |
|---|---|
| Manufacturer | Glvaner |
| Unit Count | 10 Count |
| Exterior Finish | Stainless Steel |
| Metal Type | Stainless Steel |
| Head Style | Round |
| Manufacturer Grade | Grade 304 |
| Thread Coverage | Fully Threaded |
| Outside Diameter | 0.25 Inches |
| Brand | Glvaner |
| Head Type | Round |
| Fastener Type | Carriage Bolt |
| Item Diameter | 0.25 Inches |
| Number of Pieces | 10 |
| Fastener Size | 1/4-20 x 3-1/2" |
| Thread Size | 1/4"-20 |
| Material | Stainless Steel |
| Colour | Silver |
| Thread Type | Right Hand |
| Product information | |
| Set Name | 1/4-20 x 3-1/2 Inch Carriage Bolt Kit |
| Technical Details | |
| Part Number | GVNA36018-10 |
| Model | GVNA36018-10 |
| Material Type | Stainless Steel |
| Number Of Items | 10 |
| Thread Style | Right Hand |
| Item Hardness | Rockwell B70 |
| Style | |
| Finish Types | Stainless Steel |
| Others | |
| Product Type | Carriage Bolts |
| Grade Rating | Grade A2-70 |
| Size Name | 1/4-20 x 3-1/2" |
| Screw Head Style | Round |