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High-Quality Customizable A2A4 Countersunk Hex Socket Machine Screws


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Product Highlights

Diverse Material Options: Available in 201, 304, 316, 304L, 316LB8, B8, B8M, and duplex stainless steel.
Multiple Surface Treatments: Offers polishing, galvanizing, oxidation, and hot-dip galvanizing finishes.
Wide Standard Compliance: Meets DIN, GB, ANSI, and JIS international standards for global compatibility.
Versatile Screw Types: Includes machine, self-tapping, wood, structural, and set screws for various needs.
OEM/ODM Service: Expert R&D team supports custom design and special order production.
Fast Delivery for Standard Parts: Standard parts ship within 7 days for quick project turnaround.
Broad Application Scope: Suitable for electronics, machinery, construction, automotive, and aerospace.
Flexible Payment Terms: Accepts T/T, D/P, and LC with 30% deposit and 70% before shipment.

Product Attributes

Customization: Available
Material: Stainless Steel
Type: Round Head
Groove: Cross
Connection: Thread
Head Style: Round
Standard: DIN, GB, ANSI, JIS
Color: The Original Color of Stainless Steel
Treatment: Ponishing,Galvanizing, Oxidation
Finish: Polishing, Hot-DIP Galvanizing, Electro
Application: Machinery, Chemical Industry, Environmental, Build
Package: Carton+Pallet
Shipping Time: 15-45 Days
Service: OEM/ODM
Transport Package: Standard Packing
Trademark: no
Origin: Dainan
Production Capacity: 100000 PCS/Week
Package Size: 50.00cm * 45.00cm * 30.00cm
Package Gross Weight: 30.000kg

Hex Head Screw Hexagonal Head Screw High-Quality Customizable A2A4 Countersunk Hex Socket Machine Screws

Product Description

Product Introduction:

Screws, akin to bolts, differ in application. They often don't need a nut, instead screwing into pre-drilled threaded holes or forming threads in softer materials via self-tapping, for fastening, connecting, or positioning.

Product Features:

Screw Core Classifications:

Machine Screws: Standard mechanical threads (metric, imperial) for pre-machined threaded holes. Shank can be fully or partially threaded, ideal for precision assembly.

Self-Tapping Screws: Drill, tap, and push without pre-drilled holes. Subcategories include:

Ordinary Self-Tapping Screws: Used for plastics, wood, thin metal sheets.

Self-Drilling Self-Tapping Screws: Drill tip penetrates steel plates, eliminating pre-drilling, boosting efficiency.

Wood Screws: Deep threads, large pitch, sharp teeth for wood, providing strong locking force.

Set Screws: Fix part positions, preventing slippage or rotation. Various end shapes:

Tapered End: High locking force, suitable for hard surfaces.

Flat End: Large contact area, non-damaging.

Concave/Cylindrical End: For positioning or pressing into shaft holes.

Structural screws: High-strength, heat-treated, replace bolts in steel structures, speeding up installation.

Key Characteristics:

Distinct characteristics compared to bolts:

Primarily "tapping" or "screwing": Form threaded fit with material, avoiding nuts.

Relatively Frequent Disassembly: Secure covers, panels, requiring assembly/disassembly.

Wide Size Range: From precision screws in eyewear to large self-tapping screws in structures.

High Functional Integration: Integrate functions like drilling, tapping, locking, sealing.

Requirements on Substrate: Load-bearing depends on substrate strength (plastics, wood, metal).

Typical Application Areas:

Screws are ubiquitous, spanning almost all industrial and daily life sectors:

Electronics and Appliances: Miniature machine and self-tapping screws secure housings, circuit boards, components. Materials: stainless steel or treated carbon steel.

Machinery & Automation: Mounting panels, covers, sensors, guide rails, clamps with hexagonal or pan head screws.

Construction & Decoration:

Drywall Screws: Connect drywall to joists.

Structural Screws: Connect light steel and wood structures.

Self-Drilling Screws: Secure color steel plates and purlins.

Automotive: Various self-tapping and special screws for interiors, wiring, electronics, and decor.

Furniture & Wood: Wood screws connect wood and boards like particleboard.

Precision Instruments & Watches: Miniature machine screws with high material and tolerance standards.

Aerospace: High-strength, lightweight, corrosion-resistant titanium or non-alloy screws.

Main Products

Application Scenarios

Xinghua Ruibang Stainless Steel Standard Parts Co., Ltd., founded June 16, 2016, in Dainan Town, Xinghua City, Jiangsu, China, is a professional stainless steel fastener manufacturer using 201, 304, 316, 304L, 316LB8, B8, B8M, duplex stainless steel, and other materials.

Business involves production, processing, and sales of stainless steel standard parts, fasteners, and other metal products. Annual output of US$10M with 12 production lines and over 50 employees.

Applications span home decoration, construction, automotive, aerospace, and electronics.

Main products: bolts, nuts, screws, washers, threaded rods, and non-standard items.