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Hunan Jia Shan Hardware Tech Co., Ltd.

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Province/State:hunan

Country/Region:china

Contact Person:MrTan

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China Carbon Steel Grade 12.9 Heavy Hex Bolts M16 7/16 Inch Black Oxide Finish Structural Support wholesale

Carbon Steel Grade 12.9 Heavy Hex Bolts M16 7/16 Inch Black Oxide Finish Structural Support

Name: Carbon Steel Grade 129 Heavy Hex Bolts M16 716 Inch Black Oxide Finish Structural Support
Brand: JIA SHAN
Price: 0.2 USD

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Brand Name :JIA SHAN

Model Number :DIN, ASEM, ISO

Certification :ISO

Place of Origin :China

MOQ :100

Price :USD0.2/pcs-USD1/pcs

Payment Terms :T/T, Western Union

Supply Ability :Batch order abailable

Delivery Time :1-5 weekds

Usage :Fastening

Size :Various sizes available

Style :steel hex head with washer nut

Head Style :Hexagon head

Strength :High

Finish :Polished/Zinc/ Anodizing

Manufacturer :JIA SHAN Hardward Company

Length :As customisation

Package :Small Packing+Carton Packing+Pallet

Standard :DIN

Package Quantity :100 pieces

Shape :Bolt

Measurement System :INCH, Metric

Port :Shenzhen

Quality :Inspection before shipment

Color :As customisation

Material :Carbon Steel grade 4.8/8.8/12.9

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Hex Heavy Bolt Carbon Steel Grade 12.9 M16 7/16 Inch Black Oxide Finish High Strength Structural Support

Product Attributes

Attribute	Value
Usage	Fastening
Size	Various sizes available
Style	Steel hex head with washer nut
Head Style	Hexagon head
Strength	High
Finish	Polished/Zinc/Anodizing
Manufacturer	JIA SHAN Hardward Company
Length	Customizable
Package	Small Packing+Carton Packing+Pallet
Standard	DIN
Package Quantity	100 pieces
Shape	Bolt
Measurement System	INCH, Metric
Port	Shenzhen
Quality	Inspection before shipment
Color	Customizable
Material	Carbon Steel grade 4.8/8.8/12.9

Product Description

Carbon Steel Grade 12.9 Heavy Hex Bolts M16 7/16 Inch Black Oxide Finish Structural Support

This high-strength hex heavy bolt is made from carbon steel grade 12.9, offering exceptional tensile strength for structural support in critical applications. The M16 size with a 7/16-inch thread is engineered for large structural projects including steel structures, bridges, and high-load equipment. The black oxide finish provides enhanced corrosion resistance and a professional appearance.

Designed for industrial, mechanical, and structural applications, this bolt delivers heavy-duty performance and long-term reliability in demanding environments.

Applications

12.9 grade screws are manufactured using SCM435 alloy steel with minimum tensile strength of 1220Mpa and hardness of 39~44HRC. These ultra-high strength fasteners are primarily used in:

Textile industry equipment
Hydraulic systems
Injection molding machinery
Industrial machinery components

As the top-grade screw variety, 12.9 level fasteners offer exceptional hardness and tensile strength, making them ideal for special industrial applications with high performance requirements.

Material Composition

No.	C%	Cr%	Ni%	Mo%
304	0.07	17.5-19.5	8.0-10.5	/
316	0.08	16.0-18.0	10.0-14.0	2.00-3.00
301	0.15	16.0-18.1	6-8	/
310	0.08	24-26	19-22	/

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