Black Oxide HDG High Strength Harden Square Machine Screw Nuts Square Thin Nut DIN557

Product Details
Customization: Available
Material: Carbon Steel and Stainless Steel
Type: Square Nut
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  • Black Oxide HDG High Strength Harden Square Machine Screw Nuts Square Thin Nut DIN557
  • Black Oxide HDG High Strength Harden Square Machine Screw Nuts Square Thin Nut DIN557
  • Black Oxide HDG High Strength Harden Square Machine Screw Nuts Square Thin Nut DIN557
  • Black Oxide HDG High Strength Harden Square Machine Screw Nuts Square Thin Nut DIN557
  • Black Oxide HDG High Strength Harden Square Machine Screw Nuts Square Thin Nut DIN557
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  • Overview
  • Product Description
  • Product Parameters
  • Detailed Photos
  • Company Profile
  • Exhibition Display
  • Packaging & Shipping
  • FAQ
Overview

Basic Info.

Model NO.
M3-M100, 1/8′′-4′′
Connection
Common Bolt
Head Style
Square
Standard
DIN, ANSI, GB, JIS, BSW, ASME
Grade
Gr4 Gr8 Gr10 Gr12
Finish
Zp/Yzp/HDG/Black/Geomet/Dacromet
Thread
Coarse/ Fine
Transport Package
25kgs Ctns/Bags We Can Follow Customer′s Request
Specification
M3-M100 1/8′′-4′′
Trademark
HQ
Origin
Handan City
HS Code
731816
Production Capacity
50000000

Product Description

Black Oxide HDG High Strength Harden Square Machine Screw Nuts Square Thin Nut DIN557
Product Description
Black Oxide HDG High Strength Harden Square Machine Screw Nuts Square Thin Nut DIN557
A square nut is a four-sided nut. Compared to standard hexagonal nuts, square nuts have a greater surface area in contact with the part being fastened, and therefore provide greater resistance to loosening (though also greater resistance to tightening). They are also much less likely to become rounded-off after repeated loosening/tightening cycles. Square nuts are typically mated with square-headed bolts. Square nuts are used along with flat washers to avoid damage from its sharp edges and increase the strength of the fastener. Square nuts can have standard, fine or coarse threading with platings of zinc yellow, plain, zinc clear, tin and cadmium, among others. Most can meet either the ASTM A194, ASTM A563, or ASTM F594 standard.
 
Product Parameters
ITEM NAME: Carbon Steel and Stainless Steel Square Nut
MATERIAL: Carbon steel SAE1008 / C1010 / C1020 / 10B21 / 20MnTib / 40Cr / 35Croma / Q355 etc.
STANDARD: GB / DIN / ASME/ANSI  / BSW
GRADE: Gr4 / Gr6 / Gr8 / Gr10 / Gr12 / Class2 / Class5 / Class8  / 2H Heavy Nut 
SIZE  : M3 M4 M5 M6 M8 M10 M12 M14 M16 M18 M20 M22 M24 M27 M30 M33 M36 M39 M42 M45 M48 M52  M56 M60 M64 M68 M72 M76 M80 M90 M100 
SIZE: 1/8" 1/4" 5/16" 3/8" 7/16" 1/2" 5/8" 3/4" 7/8" 1" 1-1/4" 1-1/2" 1-3/4" 2" 3" 4"
FINISH : PLAIN, ZP, YZP, HDG, Dacromet, Black Oxide ,Cr3+ , Mechanical Galvanizing, 
Detailed Photos
Black Oxide HDG High Strength Harden Square Machine Screw Nuts Square Thin Nut DIN557
Black Oxide HDG High Strength Harden Square Machine Screw Nuts Square Thin Nut DIN557
Black Oxide HDG High Strength Harden Square Machine Screw Nuts Square Thin Nut DIN557
 
Company Profile

Handan Haoqiang Fastener Manufacturing Co., Ltd.

Address:C6-13, Shichuang Logistics Port, Yongnian District, Handan City, Hebei Province, China  

Established in 2005, Handan Haoqiang Fastener Manufacturing Co., Ltd. is a professional manufacturer and exporter specializing in high-quality fasteners. With over a decade of expertise in production and a global trade presence since 2014, we have built a reputation for delivering reliable and precision-engineered fastening solutions to clients worldwide.  

Core Products:
- Nuts and bolts of various specifications  
- High-strength bolts and nuts  
- Customized fasteners tailored to client requirements  

Compliance Standards:
Our products adhere to international standards, including:  

- DIN(German Standard)  

- GB(Chinese National Standard)  

- ANSI/ASTM (American Standard)  

- BSW (British Standard Whitworth)  

- JIS (Japanese Industrial Standard)  

Equipped with advanced manufacturing technology and strict quality control systems, we ensure durability, performance, and compliance with global industry demands. Our commitment to innovation and customer-centric service has enabled us to establish long-term partnerships across industries such as construction, machinery, automotive, and energy.  

At Haoqiang Fastener, we prioritize integrity, efficiency, and sustainability. Whether for domestic projects or international exports, we strive to exceed expectations with competitive pricing, timely delivery, and exceptional after-sales support.  

Contact us today to discuss your fastener needs and explore how we can strengthen your projects with our expertise!

Black Oxide HDG High Strength Harden Square Machine Screw Nuts Square Thin Nut DIN557
Exhibition Display

Black Oxide HDG High Strength Harden Square Machine Screw Nuts Square Thin Nut DIN557

Packaging & Shipping

PACKAGE  :    25kgs Box with Pallet, 25kgs woven bags, 25 kgs Gunny bags , or we can follow customer's request

Black Oxide HDG High Strength Harden Square Machine Screw Nuts Square Thin Nut DIN557
FAQ

**Product & Specifications**  
Q: What standards do your fasteners comply with?* 

A: Our products meet DIN (German), GB (China), ANSI/ASTM (USA), BSW (UK), and JIS (Japan) standards. Custom specifications are available upon request.  

**Order & Payment**  
*Q: How can I track my international order?*  

A: A real-time tracking number will be emailed once your shipment is dispatched. For urgent inquiries, contact export customer service 

**Shipping & Logistics**  
*Q: What are your delivery options for overseas customers?* 

 A: We offer sea freight (FOB/CIF), air freight, and express courier (DHL/FedEx) with competitive rates. Delivery timelines vary by destination.  

**Returns & Warranty**  
*Q: What if I receive defective products?*  

 A: We provide a 12-month quality guarantee. Report issues within 7 days of receipt with photos/video, and we'll arrange replacements or refunds promptly.  

**Technical Support**  
*Q: Can you assist with material selection for extreme environments?*
 

 A: Absolutely! Our engineering team offers free consultation on corrosion-resistant, high-temperature, or high-load solutions. 

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