Subscribe to our newsletter!
 WHO WE ARE 
WHAT WE DO
HOW WE DO IT
WHO WE SERVE

Operating over 30 years, we know fasteners. Our market is expansive and diverse, yet we pride ourselves on personalized service to each of our accounts.

We work together, across boundaries, to meet the needs of our customers.

 

Our goal is to anticipate, understand and service your requirements. Our success is directly linked to your success.

Quality Policy

Knapp supplies the global marketplace, serving Manufacturing, Distribution, Electronic, Construction & Aerospace markets. From small machine shops to Fortune 500 companies, you can rely on Knapp.

Our Featured Products

Hex Washer Serrted Flange Screw Chat

KNAPP FASTENERS INC. STOCKS 77

SIZES THAT ARE READY TO SHIP TODAY!

Hex Washer Serrated Flange Screw 
Grade 5 Steel Zinc Plated

Thread Diameter 6-32 thru to 5/8-11

Product Highlights 
 

  • Serrations bite into surfaces and never let go

  • Time saved during installation 

  • Zinc plating inhibits rust 

  • The flange increases contact area to give you extra holding
    power without a separate washer

  • Serrated washer face ensures locking action when the fastener's
    tightened so a separate washer is not required

 


Why choose a Serrated Flange Screw? 
 

Serrated Flange Screws can provide cost saving during the installation process by using only one fastener to lock your product into place. With an increased contact area and strong holding power, there's no need for a separate washer.

The serrations located under the head, lock onto the surface once tightened, ensuring that the material being clamped to provides excellent resistance to loosening caused by vibration. 

  • Flat Socket Caps

  • Button Socket Caps

  • Hex Socket Caps

  • Flat Phillips Machine Screws

  • Pan Phillips Machine Screws

  • Hex Nuts

  • Flat Washers

  • Flat Washers Reduced OD

  • Lock Washers

  • Hi-Collar Lock Washers

  Plus many more! Please call us for other sizes.

Zinc Dichromate
Metric (M1.6 thru to M5)

In Stock Ready to Ship