Core Features of Socket Head Cap Screws/Bolts

Hexagon socket head design: Enables high-torque transmission, suitable for installation in narrow, recessed, or confined spaces, with a sleek and low-profile appearance
Cylindrical head shape: Provides a smooth surface after installation, ensuring aesthetic appeal and preventing interference with surrounding components
Excellent mechanical properties: High load-bearing capacity, shear strength, and wear resistance, ensuring stable and reliable connections under long-term use
Corrosion resistance: Surface treatments (e.g., zinc plating, nickel plating, black oxide) or stainless steel materials adapt to indoor, outdoor, and harsh working environments (e.g., humidity, corrosion).

Product Parameter (Specification)

Standard	DIN,ASTM/ANSI, JIS, EN, ISO,AS	Material	Carbon steel, Stainless Steel, Aluminum,Brass
Surface Treatment	Zinc Plated, Hop Dip Galvanized(HDG) phosphorization, Black Oxide,Geomet,Dacroment,Nickel plated,Zinc-Nickel plated	Shank	Full thread, Half thread
Grade	4.8,5.8,6.8,8.8, 10.9, 12.9,B7,B7M,B8,B8M,304,316,A2,A4	Size	M3-M64
Unite	Piece,KGS,TON	Packing	Bulk cartons with pallet, small boxes in cartons with pallet

Product Application

B8 B8M Socket Head Cap Screws is widely used in heavy Industry, mining, water treatment, healthcare, retail industry, general industry, Oil & Gas, automotive industry, solar system mounting and valve etc.

Socket Head Cap Bolt Application Scenario Table

Application Field	Specific Application Scenario	Recommended Standards & Grades	Key Considerations
1. Household Use	1. Assembly of solid wood furniture. 2. Fixing of home appliances. 3. Installation of bathroom/kitchen hardware. 4. DIY small projects. 5. Mounting of outdoor household items.	– Standards: ISO 4762, DIN 912 – Grades: Carbon steel Grade 4.6/5.6; Stainless steel A2-70	– Core advantage: Low-profile socket head hides in furniture/hardware, avoiding sharp edges and maintaining a neat appearance. – Corrosion resistance: Stainless steel A2-70 is ideal for bathrooms, kitchens, or outdoor areas to prevent rust.
2. Construction Engineering	1. Fixing of lightweight ceiling components. 2. Installation of aluminum alloy door/window parts. 3. Fastening of interior decoration elements. 4. Connection of partition wall accessories. 5. Mounting of electrical/plumbing fixtures.	– Standards: ISO 4762, ASTM F835; DIN 912 Grade 8.8 – Grades: Carbon steel Grade 8.8 ; Stainless steel A4-80	– Space efficiency: Low-profile head fits narrow gaps where hex bolts with protruding heads cannot be used.
3. Electronic Equipment	1. Assembly of server/PC components. 2. Fixing of smart device housings. 3. Installation of industrial control panels. 4. Fastening of small electronic accessories. 5. Mounting of LED lighting fixtures.	– Standards: ISO 4762, ASTM F835; DIN 912 Grade 5.6/8.8 – Grades: Stainless steel A2-70 ; Carbon steel Grade 8.8	– Precision installation: Small bolt sizes fit tiny electronic components, ensuring no damage to circuit boards or fragile parts. – EMI compatibility: Non-magnetic stainless steel versions avoid interfering with electronic signals.
4. Light Machinery	1. Fixing of small power tool housings. 2. Assembly of 3D printer components. 3. Installation of lightweight conveyor parts. 4. Fastening of pneumatic/hydraulic accessories. 5. Mounting of workshop tool holders.	– Standards: ISO 4762, DIN 912 Grade 8.8; ASTM F835 – Grades: Carbon steel Grade 8.8; Stainless steel A4-80	– Durability: Grade 8.8 carbon steel withstands mechanical vibration (e.g., drill operation) without loosening, extending tool/service life.

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Socket Head Cap Screws/Bolts

Complies with international standards such as ISO 4762, DIN 912, and ANSI B18.3
Categorized as precision hexagon socket head cap fasteners
Common materials include carbon steel (e.g., 45#), stainless steel (e.g., 304, 316), and alloy steel (e.g., 42CrMo)
Belongs to versatile fasteners, available in full-thread or half-thread designs to meet different connection needs
Strength grades range from 4.8 to 12.9
With high-strength variants undergoing quenching and tempering heat treatment

Category: Hexagon Socket Screws

Description

Standard	DIN,ASTM/ANSI, JIS, EN, ISO,AS	Material	Carbon steel, Stainless Steel, Aluminum,Brass
Surface Treatment	Zinc Plated, Hop Dip Galvanized(HDG) phosphorization, Black Oxide,Geomet,Dacroment,Nickel plated,Zinc-Nickel plated	Shank	Full thread, Half thread
Grade	4.8,5.8,6.8,8.8, 10.9, 12.9,B7,B7M,B8,B8M,304,316,A2,A4	Size	M3-M64
Unite	Piece,KGS,TON	Packing	Bulk cartons with pallet, small boxes in cartons with pallet

Application Field	Specific Application Scenario	Recommended Standards & Grades	Key Considerations
1. Household Use	1. Assembly of solid wood furniture. 2. Fixing of home appliances. 3. Installation of bathroom/kitchen hardware. 4. DIY small projects. 5. Mounting of outdoor household items.	– Standards: ISO 4762, DIN 912 – Grades: Carbon steel Grade 4.6/5.6; Stainless steel A2-70	– Core advantage: Low-profile socket head hides in furniture/hardware, avoiding sharp edges and maintaining a neat appearance. – Corrosion resistance: Stainless steel A2-70 is ideal for bathrooms, kitchens, or outdoor areas to prevent rust.
2. Construction Engineering	1. Fixing of lightweight ceiling components. 2. Installation of aluminum alloy door/window parts. 3. Fastening of interior decoration elements. 4. Connection of partition wall accessories. 5. Mounting of electrical/plumbing fixtures.	– Standards: ISO 4762, ASTM F835; DIN 912 Grade 8.8 – Grades: Carbon steel Grade 8.8 ; Stainless steel A4-80	– Space efficiency: Low-profile head fits narrow gaps where hex bolts with protruding heads cannot be used.
3. Electronic Equipment	1. Assembly of server/PC components. 2. Fixing of smart device housings. 3. Installation of industrial control panels. 4. Fastening of small electronic accessories. 5. Mounting of LED lighting fixtures.	– Standards: ISO 4762, ASTM F835; DIN 912 Grade 5.6/8.8 – Grades: Stainless steel A2-70 ; Carbon steel Grade 8.8	– Precision installation: Small bolt sizes fit tiny electronic components, ensuring no damage to circuit boards or fragile parts. – EMI compatibility: Non-magnetic stainless steel versions avoid interfering with electronic signals.
4. Light Machinery	1. Fixing of small power tool housings. 2. Assembly of 3D printer components. 3. Installation of lightweight conveyor parts. 4. Fastening of pneumatic/hydraulic accessories. 5. Mounting of workshop tool holders.	– Standards: ISO 4762, DIN 912 Grade 8.8; ASTM F835 – Grades: Carbon steel Grade 8.8; Stainless steel A4-80	– Durability: Grade 8.8 carbon steel withstands mechanical vibration (e.g., drill operation) without loosening, extending tool/service life.

Socket Head Cap Screws/Bolts

Socket Head Cap Bolt Application Scenario Table

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