DIN 7504 Zinc Plated Hex Washer Head Self Drilling Screw #12-24 x 1" Type 3 Bright Silver Full Thread Metal Stud Screw

DIN 7504 Zinc Plated Hex Washer Head Self Drilling Screw #12-24 x 1" Type 3 Bright Silver Full Thread Metal Stud Screw

Product Description 

Parameter Details

Product Name Self Drilling Screw – Hex Washer Head

Standard DIN 7504 / ISO 10666

Thread Size #12-24 UNF

Length 1" (25.4 mm)

Point Type Type 3 (#3) – for 2.8–5.3 mm steel

Head Style Hex Washer Head (integral flange)

Drive Hex socket 5/16″ (8 mm)

Material Carbon steel, case hardened

Surface Zinc plated, bright silver

Point Hardness 55–60 HRC

Core Hardness 35–45 HRC

Tensile Strength ≥ 100,000 psi

Torque Strength > 12 N·m

Pull‑out Resistance > 800 N (in 3 mm steel)

Standards ASTM C954, SAE J78

Product Summary

Self drilling screw that drills, taps, and fastens in one operation. Type 3 point eliminates pre‑drilling in 2.8–5.3 mm steel. Hex washer head provides high torque without cam‑out. Zinc plated for indoor and mild outdoor use.

 

Product Applications

Steel stud framing (drywall tracks, furring channels)

 

Metal roofing and siding (with EPDM washer option)

 

HVAC ductwork and hanger attachment

 

Electrical enclosures and backplate mounting

 

Industrial shelving and racking

 

Automotive underbody and trim panels

 

General sheet metal fabrication

 

Product Advantages

No pre‑drilling – saves 50% installation time

 

One tool operation – drill and drive with a single impact driver

 

Type 3 point matches common structural steel gauges (14–10 ga)

 

Hex washer head prevents stripping and distributes load

 

Full thread provides maximum pull‑out strength (>800 N)

 

Case hardened – hard point (55 HRC), tough core (40 HRC)

 

Zinc plating offers reliable corrosion protection

 

Available in multiple lengths – 3/4″ to 6″

 

Product Functions

Drill point cuts hole through steel

 

Flutes eject chips, leaving clean hole

 

Threads tap into the hole wall

 

Washer head seats and clamps joint

 

Resists vibration loosening

 

Zinc coating prevents rust

 

Packing & Delivery

Packing: Bulk cartons or strip collated, as per requirement

 

Delivery: 7–15 days for stock; 15–20 days for custom