Highlight: 
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                Countersunk Head Self Tapping Drywall Screw, Grade 12.9  Self Tapping Drywall Screw, Grade 12.9   self drilling drywall screws
                              

Name:	Metal Screw	Standard:	DIN,ASME,ASNI,ISO
Material:	Steel,Stainless Steel,Brass,Copper,Titanium Alloy,,Plastic	Place Of Origin:	China
Finish:	Polish,Passication,black ,galvanization,Chromate,Dacromet	Certificate:	ISO9001:2008,ROHS
Used:	Building Industry Machinery	Thread Type:	Coarse, Fine
Usage:	Fastening	Function:	Connection,Fastening And Decoration
Strength:	High	Size:	Various Sizes Available
Measurement System:	INCH,metric System

Name:	Metal Screw
Standard:	DIN,ASME,ASNI,ISO
Material:	Steel,Stainless Steel,Brass,Copper,Titanium Alloy,,Plastic
Place Of Origin:	China
Finish:	Polish,Passication,black ,galvanization,Chromate,Dacromet
Certificate:	ISO9001:2008,ROHS
Used:	Building Industry Machinery
Thread Type:	Coarse, Fine
Usage:	Fastening
Function:	Connection,Fastening And Decoration
Strength:	High
Size:	Various Sizes Available
Measurement System:	INCH,metric System

Grade 12.9 Black CSK Countersunk Head Self Tapping Drywall Screw Carbon Steel

Product Specifications

Attribute	Value
Name	Metal Screw
Standard	DIN, ASME, ANSI, ISO
Material	Steel, Stainless steel, Brass, Copper, Titanium Alloy, Plastic
Place of Origin	China
Finish	Polish, Passivation, Black, Galvanization, Chromate, Dacromet
Certificate	ISO9001:2008, ROHS
Used	Building Industry Machinery
Thread Type	Coarse, Fine
Usage	Fastening
Function	Connection, Fastening and Decoration
Strength	High
Size	Various sizes available
Measurement System	INCH, Metric system

Product Description

Carbon Steel Grade 12.9 Black CSK Countersunk Head Self Tapping Drywall Screw

Key Features

Phosphating dry-wall screws offer superior lubricity and faster penetration speed
Available in black phosphating (better attack speed) or blue-white zinc (better rust resistance)
Precision grade typically 6g (Class 2) for industrial applications
Single-line coarse-thread design provides faster tapping speed and better wood preservation
Ideal alternative to double-line fine-threaded screws for wooden keel connections

Applications

Industry	Use Case
Automotive	High-strength applications in engines, heavy-duty machinery, and bridge construction
Mechanical	Connecting mechanical parts, circuit boards, engines, transmissions, and building structures
Energy	Connecting power generation equipment and transmission line fixtures
Construction	Building structures, shipbuilding, and petrochemical equipment connections

Material Specifications

Material	Characteristics
Aluminum	Excellent thermal/electrical conductivity but requires careful processing
Titanium	Requires EDM machining with deionized water medium
Steel	High strength but generates significant heat during processing
Brass	High tensile strength but requires slow cutting speed