Therwen 60 Pack 1/2" x 6" Carriage Bolts Kits Grade 307A 1/2" USS
US$161.98
Arrives as soon as ✓ Free shipping over $200Description
Product Details Color: silver Item Dimensions: 11.02 x 7.87 x 2.95 inches Item Weight: 21.4 pounds Number of Items: 60 Unit Count: 60 Count Part Number: GFA-Therwen-3255 Thread Size: 1/2" x...
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Orders of $200 or more ship free. No code needed.
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Product Details
- Color: silver
- Item Dimensions: 11.02 x 7.87 x 2.95 inches
- Item Weight: 21.4 pounds
- Number of Items: 60
- Unit Count: 60 Count
- Part Number: GFA-Therwen-3255
- Thread Size: 1/2" x 6"
- Exterior Finish: Silver
- Manufacturer Grade: Grade 307A
- Screw Head Style: Round
- Fastener Type: Carriage Bolt
- Thread Type: Unc
- Thread Style: Right Hand
- Item Hardness: Grade 6
- Head Type: Round
- Thread Class: 3A
- Material Type: hot dipped galvanized
- Finish Types: hot dipped galvanized
- Item Highlight: Flat Washers and Hex Nuts, Hot Dipped Galvanized, Full Thread Length 13 Tpi Carriage Bolts Kits, for Wooden Deck Fence
- Item Diameter: 0.5 inches
- Size Name: 1/2" X 6"
- Number of Pieces: 60
- Fastener Size: 1/2" x 6"
- Thread Coverage: Fully Threaded
- Outside Diameter: 0.5 inches
- Set Name: Carriage Bolt Kit (60 Piece)
- Model: GFA-Therwen-3255
About this item
- Commercial Grade Steel Construction: built from commercial-grade carbon steel, these carriage bolts deliver consistent strength and reliability for general structural fastening; Designed for contractors and serious DIY applications where durability and dependable performance matter
- Hot-dip Galvanizing Process, Durable for Outdoor Use: unlike standard galvanized bolts, our heavy-duty hot-dip galvanizing effectively resists corrosive substances in ACQ-treated wood; Made of 307A carbon steel, they meet industry standards and are suitable for load-bearing structures, mechanical assembly, and other applications, ensuring long-term stable performance
- Extended 6-inch Thread for Deep Engagement: designed with full thread, providing deeper nut engagement and strong clamping force when fastening thick lumber or multi-layer wood assemblies
- Complete 40-set Hardware Kit: includes (60) 1/2" x 6" carriage bolts, (60) USS flat washers, and (60) hex nuts, all sized for proper fit and even load distribution—no additional hardware needed
- Ideal for Wood Exterior Construction Projects: the smooth round head with square neck helps prevent spinning during installation; Commonly applied for deck framing, fencing, pergolas, barns, gazebos, and outdoor wood structures
Shipping Policy
Autzen ships from the United States.
Most orders leave the warehouse within 1 business day and arrive in 2–7 business days.
- Free shipping on orders of $200 or more, applied automatically
- Otherwise shipping is a flat $6.90
- Your tracking number is emailed as soon as your order ships
- We currently ship to the lower 48 United States
Return policy
30-day returns.
If it's not quite right, you can request a return within 30 days of delivery, and Autzen will email you return instructions. Change-of-mind returns must be unused, unassembled, and in their original packaging. There is no restocking fee. Depending on the item's packaged size and weight and how it needs to be collected, a change-of-mind return may have a return shipping or pickup cost. We only deduct the actual cost: we tell you the exact amount and get your OK before arranging a paid return, and if there is no cost, nothing is deducted. Returns for damaged, defective, or incorrect items are free.
How it works
- Email us at support@autzenhub.com with your order number.
- We send your return instructions within 1 business day, along with any return shipping cost so you can decide.
- Your refund goes back to your original payment method within 10 business days of the carrier scan.
Damaged or defective on arrival? Send a photo and Autzen replaces or refunds immediately, return shipping on us, and in most cases you won't need to send anything back.