Pan head tapping screw with collar design provides extra large bearing surface compared to pan head to protect the material from damage during assembly and create stronger connecting overall.S-metal manufactures pan head tapping screw
*Carbon steel C1018-1022, alloy steel,harden.
*Stainless steel SUS201 SUS304(18-8),SUS316 and SUS410 etc .
*Zinc Galvanized/H.D.G/Decromet etc.
* Plain with passivation.
The minimum surface hardness after heat treatment shall be 500HV.
The core hardness shall be 270HV-370HV.
Apply to 0.015″ to 0.05″ thickness sheet metal fastening to metal,wood, plastic,fiberglass etc.
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