Self Tapping Screw and fastener with nylon washer

Self Tapping Screw with nylon washer

Washer incorporated into the screw to prevents looseness and surface collapse.

As washer is attached before screw threads are rolled, washer cannot be removed.
Various screw types and materials available.

♣Special characteristics of various washers

1. Flat Washer
Screw with Flat Washer

Prevents screw head from caving (surface collapse) into threaded material.
Will not damage receptacle material.
Large washer surface area stabilizes contact surface. Effective in preventing loosening

caused by surface pressure.

2. Spring Washer
Screw with Spring Washer

Increasing friction imposed by the opposing force of spring washer prevents screw loosening and drop out.
Washer effectively prevents screw loosening by digging into receptacle material.

3. Spring Washer + Plain Washer
Screw with Flat and Spring Washers

As effective as spring washer alone.
Flat washer prevents damage to receptacle material.
Larger washer area provides more surface resistance, providing a better non-loosening effect.

4. Wave Washer
(Product Image 4) Screw with Wave Washer

Washer prevents receptacle material damage by laying parallel to tap hole.
Compared to normal spring washer, the thin wave shape produces more spring reaction force.

5. Wave Washer + Plain Washer
Screw with Flat and Wave Washers

Compared to normal spring washers, the thinner wave style washer ensures more stable seating

with longer and larger holes.

6. Serrated Washer (External)
Screw with Serrated Washer

Less spring reaction force than regular spring washers.
Teeth lock into place, stopping looseness.
Since teeth dig into receptacle material, can be used to ground coated objects.

7. Nylon Washer
Screw with Nylon Washer

Can be used in places that receive large amounts of vibration.
Can be used with fragile receptacle material.
Can be used when screws need to be installed and removed.

Manufacturing Facilities

Plant machinery: Header Machine

Plant machinery: Rolling Machine

Plant machinery: Split Machine

General Packaging for Shipping

Small Box for Screws