Mutual Screw & Supply

7/8-9 X 4" Hex Head Cap Screws | Grade 5 Steel Yellow Zinc | Partially Threaded (15 / Pkg.)

7/8-9 X 4" Hex Head Cap Screws | Grade 5 Steel Yellow Zinc | Partially Threaded - Main image
$78.69 $109.29 In stock

7/8-9 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 15

Specifications

  • Thread Size: 7/8-9
  • Length: 4"
  • Threads Per Inch: 9
  • Material: Steel
  • Grade: Grade 5
  • Finish: Yellow Zinc CR+6
  • Thread Style: Partially Threaded
  • Pack Quantity: 15
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 (4.6 / 5 · 5 reviews)

Victoria Y. ★★★★★

Had to swap out some worn bolts on a press, and these 7/8-9 hex heads grabbed the wrench perfectly, no stripping. The yellow zinc coating is a nice touch—gives them a clean, uniform look even after a few days of shop dust. Took a 3/4 socket and torqued down without a hiccup, so the 15-pack is solid

Daniel P. ★★★★★

The partially threaded design made alignment in the mounting bracket a breeze, and the yellow zinc finish has held up nicely against the shop grime. These grade 5 bolts feel solid in the hand, exactly what I wanted for the equipment frame.

Lily Y. ★★★★★

Needed some serious bolts for a big press repair, and these 7/8-9s handled the torque perfectly. The zinc coating looks clean and durable, and the partial threads made alignment a breeze. Pack of 15 was exactly what the job required.