Steel Cross Recessed Countersunk Head Tapping Screws

Steel Cross Recessed Countersunk Head Tapping Screws

Payment Type:	T/T
Incoterm:	FOB,CFR,CIF
Min. Order:	10 thousand pcs
Transportation:	Ocean,Land,Air,Express
Port:	上海,宁波

Contact Now

Packaging & Delivery
Product Description
Supply Ability & Additional Information

Packaging & Delivery

Selling Units:	thousand pcs
Package Type:	box
Picture Example:

Product Description

Cross Recessed Pan Head BoltPerformance
Cross Recessed Truss Head Screw surface hardness: surface hardness after heat treatment ≥450HV0.3.
Steel Countersunk Screws core hardness: core hardness after heat treatment ≤ST3.9: 270～390HV5, ≥ST4.2: 270～390HV10.
Drilling performance: On the test plate with the specified carbon content ≤0.23%, hardness 110~165HV30, and thickness, according to the specified axial force, within the specified time, drill the prefabricated parts required for extrusion and Screw fitting holes. internal thread.
Thread forming performance: In the drilled prefabricated holes, Cross Recessed Pan Head Bolts can extrude matching internal threads while drilling. When screwed in and tested, the thread does not deform.
Torsional strength: When conducting a torsional strength test on self-drilling and Self-tapping Screws according to the prescribed methods and devices, the torsional strength should be ≥ breaking torque value.