Mutual Screw & Supply

9/16-18 X 4" Hex Head Cap Screws | Grade 5 Steel Yellow Zinc | Partially Threaded (25 / Pkg.)

9/16-18 X 4" Hex Head Cap Screws | Grade 5 Steel Yellow Zinc | Partially - Main image
$48.79 $78.69 In stock

9/16-18 x 4" hex head cap screws for machinery, equipment assembly and general industrial fastening.

  • Grade 5 Steel Yellow Zinc construction
  • Partially Threaded
  • Hex head for wrench or socket drive
  • Sold in packs of 25

Specifications

  • Thread Size: 9/16-18
  • Length: 4"
  • Threads Per Inch: 18
  • Material: Steel
  • Grade: Grade 5
  • Finish: Yellow Zinc CR+6
  • Thread Style: Partially Threaded
  • Pack Quantity: 25
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)

Carter ★★★★★

I needed a bolt for a heavy-duty farm jack repair, and these 4-inch Grade 5 screws handled the load without any flex. The yellow zinc coating looks decent and should resist rust better than plain steel.

Steven G. ★★★★★

The hex heads sat perfectly flush in my socket wrench during a trailer hitch install, and the partial threading gave just the right grip without bottoming out. Much sturdier than the cheap bolts at the big box store.

Emily ★★★★★

I used these to repair a heavy-duty tractor hitch, and the partial threading made it much easier to align the bolts into the frame. The grade 5 steel held up perfectly under the torque.