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Iterzen
3/8" x 2-1/2" (50 Pack) Zinc Carriage Bolt Kit, Grade 307A by Makers Bolt
US$66.55
Arrives as soon as ✓ Free shipping — over $200Description
Product Details Color: Silver Number of Items: 50 Unit Count: 50 Count Part Number: CBK3840Z50 Thread Size: 3/8"-16 Exterior Finish: Zinc Manufacturer Grade: Grade 307A Screw Head Style: R...
Delivery & Returns
Ships to the United States
Free shipping on orders over $200 · $6.90 below that
30-day returns — label emailed, fees may apply
Free shipping over $200
Orders of $200 or more ship free. No code needed.
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Product Details
- Color: Silver
- Number of Items: 50
- Unit Count: 50 Count
- Part Number: CBK3840Z50
- Thread Size: 3/8"-16
- Exterior Finish: Zinc
- Manufacturer Grade: Grade 307A
- Screw Head Style: Round
- Fastener Type: Carriage Bolt
- Thread Type: Right Hand
- Thread Style: Right Hand
- Item Hardness: Grade 2
- Head Type: carriage
- Thread Class: 1A
- Compatible Groove Diameter: 0.38 inches
- Grade Rating: Grade A307
- Material Type: Zinc
- Metal Type: Zinc
- Finish Types: Zinc Plated
- Item Diameter: 0.38 inches
- Size Name: 3/8 x 2-1/2
- Number of Pieces: 50
- Fastener Size: 3/8 x 2-1/2
- Thread Coverage: Fully Threaded
- Outside Diameter: 1 inches
- Set Name: Zinc Carriage Bolt Kit (50 Piece)
About this item
- Diameter: 3/8"
- Length: 2-1/2"
- Head diameter: 0.813"
- Nut diameter: 3/8"
- Nut wrench size: 9/16"
- Washer outside diameter: 1"
- Kit includes 50 carriage bolts, 50 USS thick washers, 50 hex nuts
- Zinc plated for moderate corrosion resistance
- Grade 307A carriage bolts, grade 2 hex nuts, and USS flat washers
- The flat head provides a semi-flush finish and is perfect for decks, gazebos, pergolas, and other heavy duty applications
Shipping Policy
Iterzen 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 have 30 days from delivery to send it back, and Iterzen will email you a return label. Return shipping fees may apply depending on the item's size, weight, and shipping location, and are deducted from your refund.
How it works
- Email us at support@iterzen.com with your order number.
- We send a return label within 1 business day, along with the return shipping cost (if any) so you can decide.
- Your refund goes back to your original payment method within 10 business days of the carrier scan.
Items should be unused, unassembled, and in their original packaging. Damaged or defective on arrival? Send a photo and Iterzen replaces or refunds immediately, return shipping on us, and in most cases you won't need to send anything back.