Suzhou Runtai Precision Hardware Co,.Ltd.
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Zinc Plated Steel Square Drive Countersunk Head Wood Screws Flat Head Furniture Screws
Products Descriptions
These steel screws are zinc plated to resist corrosion in wet environments. All are beveled under the head for use in countersunk holes. They press threads into material for a tight, secure hold. To prevent splitting, drill a pilot hole slightly smaller than the screw. Length is measured from the top of the head.
Products Detail Informations
Physical Properties
| Hardness ( HV ) | 45 | Yield Strength ( Mpa ) | 205 | Elongation ( % ) | 35 |
| Tensile Strength ( Mpa ) | 320 | Torque | 3 | Reduction Area ( % ) | 50 |
Specification
| Thread diameter | 4.8 |
| Thread Length | 50 |
| Pitch | 1.2 |
| Head Diameter | 6.8 |
| Head Height | 3.5 |
| Drive | Square |
Optional ANSI specifications
| d | L |
| #0 | 2-5 |
| #1 | 5-10 |
| #2 | 3-10 |
| #3 | 5-10 |
| #4 | 5-15 |
| #5 | 5-20 |
| #6 | 8-25 |
| #7 | 8-30 |
| #8 | 10-50 |
| #9 | 10-60 |
| #10 | 15-80 |
| #12 | 20-100 |
| #14 | 30-150 |
Finish
| Type | Thickness | Salty Spray Hours | RoHS / REACH |
| Zinc | 5 | 24 | RoHS |
Product Features
1 .Harden material.
2. Easy to operation ..
3 . Harden material
4 . Resistant corrosion
5 . No burrs and scratch
6 . Environmental protection .
7 . Effective working .
8 . Long-service .
Applications
Robertson wood screws are normally used for wooden or plastic pieces .
1 ) Building .
windows , door etc .
2 ) Furniture .
sofa , wooden floor , wooden door and window and cabinet etc .
3 ) Plastic pieces .
Tips for Use
1 . Use a square wrench to drive wood screws .
2 . The thread moving direction is from right to left to drill into workpiece , and back out in reverse direction .
3 . Do not use a sharp tool or bladed tool to drive the screws .
4 . Do not scratch the screw in harden something in order to keep bright surface .
5 . Keep screws in the dry warehouse .
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