Mutual Screw & Supply

#10-24 X 3-1/2" Carriage Bolts | Fully Threaded | A307 Grade A Plain Steel (300 / Pkg.)

#10-24 X 3-1/2" Carriage Bolts | Fully Threaded | A307 Grade A Plain Steel (300 - Main image
$14.1 $20.73 In stock

#10-24 X 3-1/2" Carriage Bolts in A307 Grade A Plain Steel. Carriage bolts feature a smooth, rounded head with a square neck underneath that pulls into the material to prevent the bolt from turning during installation, making them ideal for wood-to-wood and wood-to-metal connections.

  • Domed head with square anti-rotation neck
  • A307 Grade A Plain Steel construction
  • Coarse thread for use in wood and with nuts and washers
  • Fully Threaded
  • Sold in bulk packs

Specifications

  • Thread Size: #10-24
  • Length: 3-1/2"
  • Threads Per Inch: 24
  • Material: A307 Grade A Plain Steel
  • Finish: Plain
  • Thread Style: Fully Threaded
  • Pack Quantity: 100
Before you pay

Check the method and total at checkout.

When it ships

Allow for processing time as well as the journey to you.

Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

View policy
If you need a refund

Keep your order number and contact the store to start.

Please contact us for the refund processing timeframe before returning an item.

View policy
Delivery costs

Review the cost for your destination and chosen service.

Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

View policy
Returning an item

Check the return conditions before sending anything back.

United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

View policy

Customer Reviews (4.8 / 5 · 5 reviews)

Avery P. ★★★★★

The square neck design really locks these in place without spinning — no frustration during assembly. They mated perfectly with my 3/4" material and came out looking neat.

Elizabeth ★★★★★

Finally found carriage bolts for a heavy gate project that the square neck actually bites into the wood—these won't spin loose on me. Pack of 300 is plenty, and the plain steel's matte finish looks right for outdoor furniture.

Madison ★★★★★

Had to replace some old rusted hardware on a gate and these carriage bolts did the trick perfectly. The square neck grabbed the wood tight so nothing spun while I tightened the nut.