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No.4 Twin Threaded Woodscrews Pozi Countersunk Bright Zinc Plated DIN 7997

No.4 Twin Threaded Woodscrews Pozi Countersunk Bright Zinc Plated DIN 7997

  • £047

Excluding VAT

Return Policy:For Most items: 30 days Return Policy

We supply products all over the World, For international customers please send your enquriries to sales@boltworld.co.uk for Quotation.

A traditional twin-thread woodscrew with single lead start for a fast installation. Mainly used in soft timber applications or masonry with a plastic plug.

• Double countersunk head reduces the likelihood of head shear and assists completion of countersinking
• Partially threaded from 1 1⁄4 ” and above
• Zinc plating 3-5 microns
• Made from C10-18 steel to ensure consistent quality
• 60° twin-threads with parallel shank for faster insertion and greater pull-out resistance
• Surface hardened up to 750 HV to prevent torque shearing under load and a core hardness of up to 450 HV for improved ductility

Click For -> Pozi Countersunk Woodscrew Dimension 

FURTHER INFORMATION

Size dk k (max) ds b Drive
3.0 (#4) 5.98-5.22 1.65 3.00-2.60 0.6 x L #1
3.5 (#6) 6.95-6.05 1.93 3.50-3.02 0.6 x L #2
4.0 (#8) 7.95-7.05 2.20 4.00-3.52 0.6 x L #2
4.5 (#9) 8.75-7.85 2.35 4.50-4.02 0.6 x L #2
5.0 (#10) 9.65-8.75 2.50 5.00-4.52 0.6 x L #2
5.5 (#12) 10.75-9.65 2.75 5.50-5.02 0.6 x L #3
6.0 (#14) 11.55-10.45 3.00 6.00-5.52 0.6 x L #3

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