Bi-metal self tapping screw

Bi-metal self tapping screw

Material: 304+435 / 316+435 (Stainless Steel Hybrid)
Dimensions: Ø4.8/5.5/6.3/8.0 × 22–350mm
Corrosion Resistance:

​Salt Spray Test: 500/1000/1500/2000 hours (ISO 9227)
​Acid Rain Cycle: Class 3/4/5 (ASTM G85)
Key Features:

Bimetal structure: Combines corrosion resistance (304/316) with alloy steel (435) core strength.
Self-tapping design for direct fastening into metal substrates.
Ideal for coastal, chemical, and high-humidity environments.
Compliance: ASTM F594, ISO 3506.
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