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ISO 7379 M3 M4 M5 5/16 Black Alloy Steel Allen Socket Cap Head Step Screw Shoulder Bolts
ISO 7379 M3 M4 M5 5/16 Black Alloy Steel Allen Socket Cap Head Step Screw Shoulder Bolts
ISO 7379 M3 M4 M5 5/16 Black Alloy Steel Allen Socket Cap Head Step Screw Shoulder Bolts
ISO 7379 M3 M4 M5 5/16 Black Alloy Steel Allen Socket Cap Head Step Screw Shoulder Bolts
ISO 7379 M3 M4 M5 5/16 Black Alloy Steel Allen Socket Cap Head Step Screw Shoulder Bolts
ISO 7379 M3 M4 M5 5/16 Black Alloy Steel Allen Socket Cap Head Step Screw Shoulder Bolts
ISO 7379 M3 M4 M5 5/16 Black Alloy Steel Allen Socket Cap Head Step Screw Shoulder Bolts
ISO 7379 M3 M4 M5 5/16 Black Alloy Steel Allen Socket Cap Head Step Screw Shoulder Bolts
ISO 7379 M3 M4 M5 5/16 Black Alloy Steel Allen Socket Cap Head Step Screw Shoulder Bolts
ISO 7379 M3 M4 M5 5/16 Black Alloy Steel Allen Socket Cap Head Step Screw Shoulder Bolts
ISO 7379 M3 M4 M5 5/16 Black Alloy Steel Allen Socket Cap Head Step Screw Shoulder Bolts
ISO 7379 M3 M4 M5 5/16 Black Alloy Steel Allen Socket Cap Head Step Screw Shoulder Bolts
Specifications
Place of Origin :
Guangdong, China
Brand Name :
FinExpress
Model Number :
Shoulder Screw
Packaging Details :
1.1000pcs / plastic bag,20kgs/ carton ,then put on the wood pallet ,
2.Carton size:28cm*18cm*13cm,
3.Wood pallet size:118cm*113cm,Weight:700~800Kg Bulk:0.8 cubic
4.The weight of 20 FT Container:20~25 Tons
5,As your requirements
Supply Ability :
500000000 Piece/Pieces per Week
MOQ :
30000
Price :
$0.08/pieces 5000-9999 pieces
Payment Terms :
T/T, L/C, D/A, D/P
Delivery Time :
7~15 Working Day
Finish :
Plain, ZINC PLATED, Dacromet
Material :
Stainless steel, Steel
Measurement system :
Metric
Head Style :
Pan, Truss, Flat, HEX
Standard :
ISO, Non-standard
Product name :
Black Dacromet Pan Head Torx Step Shoulder Screw
MOQ :
1 piece in stock, 30,000 pcs customized
Package :
Small Packing+Carton Packing+Pallet
Delivery time :
In stock 5~7 working days, customized 15~25 working days
Service :
OEM ODM Custom Service
Length :
1mm~500mm
Certificate :
ISO9001:2015, RoHs
Port :
Shenzhen, Guangzhou
Description
ISO 7379 M3 M4 M5 5/16 Black Alloy Steel Allen Socket Cap Head Step Screw Shoulder Bolts

ISO 7379 M3 M4 M5 5/16 Black Alloy Steel Allen Socket Cap Head Step Screw Shoulder Bolts

Product Overview

Engineered for precision alignment and load distribution, our ISO 7379 Shoulder Bolts are crafted from high-strength alloy steel with a black oxide finish. Featuring a socket cap head, unthreaded shoulder, and Allen drive, these bolts are ideal for applications requiring exact spacing, pivot points, or rotational support in machinery, automotive, and automation systems. Fully compliant with ISO 7379 standards, they ensure reliability in high-stress environments.

Key Features

✅ ISO 7379 Compliance

  • Dimensional Precision: Strict adherence to international standards for shoulder diameter, length, and thread tolerances.
  • Interchangeability: Guaranteed compatibility with ISO-certified components.

✅ Alloy Steel Construction

  • Material Grade: 10.9/12.9 Alloy Steel – Tensile strength up to 1,200 MPa (Grade 12.9).
  • Black Oxide Finish: Corrosion-resistant coating reduces wear and provides a sleek, low-reflective appearance.

✅ Socket Cap Head & Allen Drive

  • Hex Socket (Allen Key): Secure tightening with standard hex keys (2mm–6mm).
  • Low-Profile Head: Fits flush with surfaces, minimizing protrusion in compact assemblies.

✅ Shoulder Design

  • Unthreaded Shoulder: Maintains precise alignment of bearings, bushings, or rotating parts.
  • Smooth Bearing Surface: Reduces friction and wear on mating components.

ISO 7379 M3 M4 M5 5/16 Black Alloy Steel Allen Socket Cap Head Step Screw Shoulder BoltsISO 7379 M3 M4 M5 5/16 Black Alloy Steel Allen Socket Cap Head Step Screw Shoulder BoltsISO 7379 M3 M4 M5 5/16 Black Alloy Steel Allen Socket Cap Head Step Screw Shoulder BoltsISO 7379 M3 M4 M5 5/16 Black Alloy Steel Allen Socket Cap Head Step Screw Shoulder Bolts

ISO 7379 M3 M4 M5 5/16 Black Alloy Steel Allen Socket Cap Head Step Screw Shoulder Bolts
Specification
More Detail Informations
Available Material
1.Stainless Steel: SS303, SS304, SS316, SS410, SS420;
2.Carbon steel: C1006,C1010,C1018,C1022,C1035K,C1045;
3.Brass: C3602,C3604,Hpb59,Hpb62,Hpb65,Hpb58,Hpb70 ;
4.Aluminum: Al6061, Al6063 etc
or as your requirements
Head type
CSK Head,Pan Head,Truss Head,Hexagon Head,Round Head,Oval Head,Button Head,Cap Head,Cheese Head,etc.
Hardness
Carbon Steel:HRC:28~35 ,HV450~700
Alloy Steel:HRC:32~39(grade10.9) HRC:39~44(grade12.9)
Finish
Zinc plated, Nickel plated, Bronze, Copper,Phosphate, Oxidation black, Passivation, Tin, Dacromet, Gold, Chrome, Silver,
Phosphorization,Zinc-nickel alloy plated etc.
Sample Available
The sample is free of charge if we have the existing tooling,you only need to pay for the freight cost
Delivery time
Samples time 3-5 working days, Lead time 20-25 working days
Pricing Term
EXW Dongguan(FCA),FOB, CIF, CNF, DDU,etc.
Packing
Bulk in PE bag or Small boxes.then in carton .pallet
Payment term
TT (30% in advance as deposit, balance before delivery) , L/C, Western Union,PayPal etc
Management system
ISO9001:2015
Certificate
ISO,ROHS
Why Choose Us

Why Choose Us?

✅ OEM/ODM Support: Full custom packaging, branding, and documentation.
✅ Quality Assurance: ISO 9001-certified with full material traceability and testing (salt-spray, torque, tensile).
✅ Flexible MOQs: Prototype batches to large-scale production.
✅ Fast Turnaround: 10–15 days for standard orders; expedited options available.

ISO 7379 M3 M4 M5 5/16 Black Alloy Steel Allen Socket Cap Head Step Screw Shoulder BoltsISO 7379 M3 M4 M5 5/16 Black Alloy Steel Allen Socket Cap Head Step Screw Shoulder Bolts

ISO 7379 M3 M4 M5 5/16 Black Alloy Steel Allen Socket Cap Head Step Screw Shoulder Bolts

Company Profile

ISO 7379 M3 M4 M5 5/16 Black Alloy Steel Allen Socket Cap Head Step Screw Shoulder Bolts

ISO 7379 M3 M4 M5 5/16 Black Alloy Steel Allen Socket Cap Head Step Screw Shoulder Bolts

ISO 7379 M3 M4 M5 5/16 Black Alloy Steel Allen Socket Cap Head Step Screw Shoulder Bolts

ISO 7379 M3 M4 M5 5/16 Black Alloy Steel Allen Socket Cap Head Step Screw Shoulder Bolts

FAQ
Q1: What is your main products and material supply?
A1: Our main products are Electronic screws,Sems screws,Tapping screws,Chicago screws,Shoulder screws etc. Special Non-standard studs,Turning parts and High-end precision complex CNC Machining parts etc.
A2: Carbon Steel, Alloy Steel, Aluminum alloy,Stainless Steel, Brass, Copper ,Titanium alloy or according to your requirement.
Q2: When can I get the price?
A: We usually offer you a quotation within 12 hours, and the special offer is not more than 24 hours.Any urgent cases, please contact us directly by phone or send email to us.
Q3: What about the transportation and delivery date?
A: If the weight of goods more than 80kg,Normally we use shipment to transprot the orders. It is about 20-30days . If the weight of goods less than 80kg,or there are urgent, we can send the goods via air express,It is 3~5 days.

Q4: What's your packing?What to do in case of damaged goods during transport?
A1: Our Normal packing is bulking in Cartons, less than 20 kgs/carton, 48 cartons / pallet. We also can pack products according to your requirement.
A2: To avoid any subsequent trouble regarding quality issue, we suggest you check the goods once you receive them. If there is any transport damaged or quality issue, don't forget take the detail pictures and contact us as soon as possible, we will properly handle it to make sure your loss to reduce to the smallest.
Q5: Can I get discounts?
A: Yes, for big order, frequent customers, we give reasonable discounts.
Q6: Do you have enough capacity?
A: Our production equipment is a new imported equipment. We have a group of skilled workers who have been working for more than 10 years. Their production experience is very rich and their skills are very skilled. The screws can be 30 million pcs/month. We have sufficient funds to ensure the normal operation of the factory.
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ISO 7379 M3 M4 M5 5/16 Black Alloy Steel Allen Socket Cap Head Step Screw Shoulder Bolts

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Product Detail
Place of Origin :
Guangdong, China
Brand Name :
FinExpress
Model Number :
Shoulder Screw
Packaging Details :
1.1000pcs / plastic bag,20kgs/ carton ,then put on the wood pallet ,
2.Carton size:28cm*18cm*13cm,
3.Wood pallet size:118cm*113cm,Weight:700~800Kg Bulk:0.8 cubic
4.The weight of 20 FT Container:20~25 Tons
5,As your requirements
Supply Ability :
500000000 Piece/Pieces per Week
MOQ :
30000
Contact Supplier
ISO 7379 M3 M4 M5 5/16 Black Alloy Steel Allen Socket Cap Head Step Screw Shoulder Bolts
ISO 7379 M3 M4 M5 5/16 Black Alloy Steel Allen Socket Cap Head Step Screw Shoulder Bolts
ISO 7379 M3 M4 M5 5/16 Black Alloy Steel Allen Socket Cap Head Step Screw Shoulder Bolts
ISO 7379 M3 M4 M5 5/16 Black Alloy Steel Allen Socket Cap Head Step Screw Shoulder Bolts
ISO 7379 M3 M4 M5 5/16 Black Alloy Steel Allen Socket Cap Head Step Screw Shoulder Bolts
ISO 7379 M3 M4 M5 5/16 Black Alloy Steel Allen Socket Cap Head Step Screw Shoulder Bolts

Finexpress Precision Manufacturing (dongguan) Co., Ltd

Verified Supplier
1 Years
guangdong, dongguan
Since 2002
Business Type :
Manufacturer
Main Products :
Metal Screw Fastener, Threaded Insert Nut, Hex Standoff Spacer
Total Annual :
5000000-6000000
Employee Number :
101~200
Certification Level :
Verified Supplier
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