Blue-White Zinc Plated/Galvanized Carriage Bolts/Mushroom Head Square Neck Carraige Bolts (Grade 2 Grade5)

• Material: Carbon Steel
• Type: Mushroom Head
• Connection: Common Bolt
• Head Style: Round
• Standard: DIN
• Grade: 8.8
• Model NO.: M4-M64
• Application: Machinery
• Finish: Blue-White Zinc Plated
• Available Material: Carbon Steel
• Head Type: Mushroom Round Head
• International Standard: DIN, ANSI, GB, JIS, Bsw, GOST
• Class/Grade: 4.8, 8.8, 10.9
• Used: Hex Bolt-Machinery, Building
• Surface Finishing: Galvanizing, Blu-White Zinc Plated
• Transport Package: 20-25kg/Carton+900kg Pallet
• Specification: M4-M64
• Trademark: HN
• Origin: China
• HS Code: 731815
• Production Capacity: 500ton/Month

Product Description

Blue-white zinc plated/galvanized Carriage Bolts/ cup head bolts/Mushroom Head Square Neck Bolts(Grade 2 Grade5)

   

A carriage bolt, coach bolt or round head square neck boltis a form of bolt.

It is distinguished from other bolts by its head: the shank of the bolt is circular for most of its length, as usual, but the portion immediately beneath the head is formed into a square section.This makes the bolt self-locking when placed through a square hole, or a round hole in most wood. This allows the fastener to be installed with only a single tool, a spanner or wrench, working from one side. The head of a carriage bolt is usually a shallow dome. The squared section is of the same size as the diameter of the bolt shank, with a plain unthreaded shank.

Carriage bolts were developed for use through iron strengthening plates on either side of a wooden beam. It is commonplace though to use them into bare timber, the squared section giving enough grip to prevent rotation.

Products name	Blue-white zinc plated/galvanized Carriage Bolts/ cup head bolts/Mushroom Head Square Neck Bolts
Standard:	DIN,ASTM/ANSI JIS EN ISO,AS,GB
Material	Stainless Steel: SS201, SS303, SS304, SS316,SS316L,SS904L,F593
	Steel Grade: DIN: Gr.4.6,4.8,5.6,5.8,8.8,10.9,12.9;  SAE: Gr.2,5,8;  ASTM: 307A,307B,A325,A394,A490,A449,
Finishing	Zinc(Yellow,White,Blue,Black),Hop Dip Galvanized(HDG),Black Oxide, Geomet,Dacroment,anodization,Nickel plated,Zinc-Nickel plated
Production Process	M2-M24:Cold Froging,M24-M100 Hot Forging, Machining and CNC for Customized fastener
Customized Products Lead time	Busy season:15-30days,Slack seaon:10-15days
Stock Products	Steel:4.8Grade DIN6923,8.8Grade 10.9Grade of GB5783 and GB5782 Stainless steel: All DIN Standard stainless steel Bolt
Free Samples for standard fastener
For more information visit:hainafastener.en.made-in-china.com

Service

        Professional Manufacturer: All of our Fastener are designed and manufactured according to buyers' specification and performance.
        Quality is guaranteed: Durability testing and critical technical design to enhance fasteners lifetime.
        Cost effective: Competitive prices with factory directly supply
        Perfect fastening solution with 20 years experiences to solve your problem: Wide range of parts selection.
        Customized Ideal Fasteners: customized services according to the samples and drawings offered.
        If you are not sure about what exactly you need -  feel free to contact us anytime and get professional assistance from us.