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Class 4.8 8.8 Cross Recessed Flat Black Drywall Screw Carbon Steel

Product Details

Place of Origin: China

Brand Name: JIA SHAN

Payment & Shipping Terms

Minimum Order Quantity: 10pcs

Price: 0.05USD-0.15USD

Packaging Details: Plastic Bag+Chipboard Carton+Plywood Pallet Pallet with Belt&Plastic Film.

Delivery Time: 15days

Supply Ability: 50000 pcs a week

Get Best Price

Product Details

Product Description

Highlight: 
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                Cross Recessed  Black Drywall Screw, Class 4.8  Black Drywall Screw
                              

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

Class 4.8 8.8 Cross Recessed Flat Black 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 Class 4.8 8.8 Black Oxide Cross Recessed Flat Black Drywall Screw

Description

The performance grades of bolts used for steel structure connections range from 3.6 to 12.9, with grade 8.8 and above classified as high-strength bolts made from low-carbon alloy steel or medium carbon steel with heat treatment (quenching, tempering). Grade 4.8 bolts are typically made from 45 steel or Q235-A materials.

The performance grade label consists of two numbers representing the nominal tensile strength value and the yield ratio of the bolt material respectively.

Applications

Industry	Use Case
Automotive	High-strength applications including 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 lines
Architectural	Building structures, shipbuilding, and petrochemical equipment

Materials

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