#8 x 1 Hex Washer Head Sheet Metal Screws External Hex Drive

$8.95

12 x 1-1 4 Hex Washer Head Sheet Metal Screws External Drive Stainless Steel 18-8 Full Thread Bright Finish Self-Tapping Type A Quantity 50

FREE SHIPPING ON ORDERS OVER $50

Description

Sheet metal screws have sharp threads that cut into materials such as: Plastic, Plexi Glass, Wood, and sheet metal. Sheet metal screws are also the go to fasteners for use with plastic wall anchors in drywall. Tapping screws are considered externally threaded fasteners that “tap” their own mating threads in metallic and non-metallic (such as plastic) materials. Tapping screws, especially Type A, are referred to as “sheet metal screws” because one of their first applications was in ventilation ducts made of sheet metal. They also make excellent fasteners for attaching metal hardware to wood because the fully threaded shank provides good retention in wood. Pan heads are slightly rounded with short vertical sides. A Pan head provides a low large diameter head, but with characteristically high outer edge along the outer periphery of the head where driving action is most effective for high tightening torques. Phillips drive is x-shaped for installation with a phillip screw driver. The design is often criticized for its tendency to cam out at lower torque levels than other “cross head” designs. There has long been a popular belief that this was actually a deliberate feature of the design, for the purpose of assembling aluminum aircraft without over tightening the fasteners.

Reviews

There are no reviews yet.

Be the first to review “#8 x 1 Hex Washer Head Sheet Metal Screws External Hex Drive”

Order Processing: After your payment is authorized and verified, we will start processing your order and this process can take from 1 to 2 business days, so please be patient with us. If we are unable to process your order due to inaccurate or incomplete payment or incorrect address information, your order processing may be delayed.

Carrier: UPS/FedEx/USPS. Delivery Timescale: More than 90% of orders arrive in 10 business days after despatch.

FREE RETURNS on all orders!
The following conditions must be met:

1. Items must be returned within 30 days after the purchase date.
2. Items must be unworn, undamaged and in original packaging.

#8 x 1 Hex Washer Head Sheet Metal Screws External Hex Drive