Mutual Screw & Supply

1/4-20 X 1-1/2" Self-Drilling (TEK) Serrated Self-Drilling Screws | Serrated Hex Head Slotted Drive | Steel Trivalent Zinc (100 / Pkg.)

1/4-20 X 1-1/2" Self-Drilling (TEK) Serrated Self-Drilling Screws | Serrated - Main image
$6 $10 In stock

These 1/4-20 x 1-1/2" self-drilling screws are manufactured from Steel with a trivalent zinc finish, featuring a slotted drive and a hex head. They are well suited to drilling and fastening metal in a single operation.

  • Material and finish: Steel, Trivalent Zinc finish
  • Drive: Slotted
  • Head style: Hex
  • Thread size: 1/4-20
  • Length: 1-1/2"
  • Applications: Drilling and fastening metal in a single operation

Specifications

  • Product type: Self-Drilling Screws
  • Material: Steel
  • Finish: Trivalent Zinc
  • Head style: Hex
  • Drive type: Slotted
  • Thread size: 1/4-20
  • Length: 1-1/2"
  • Threads per inch: 20
  • Thread type: Self-Drilling (TEK)
  • Measurement type: Imperial
  • Features: Serrated
  • Pack quantity: 50 per package

Please note: This item is excess stock and is sold non-cancelable, non-refundable, and non-returnable. Please call us with any questions about this item before ordering.

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)

Joshua D. ★★★★★

Used a handful of these to attach steel roofing panels to the frame, and the self-drilling tip chewed right through without any pilot holes. The hex head held the driver bit securely even at high torque, which saved me a ton of time.

Eli W. ★★★★★

The serrated edges on these TEK screws bite into the steel immediately, so I didn't have to pre-drill a single pilot hole. The trivalent zinc coating looks clean and hasn't shown any rust after a week of outdoor use, and the slotted hex head took a wrench without stripping.

Charlotte G. ★★★★★

Used a full box attaching steel brackets to a trailer frame, and the serrated hex head bit into the metal without stripping once. The trivalent zinc finish held up fine even in light rain during the install.