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Carbon steel DIN931 grade 4.8 5.8 6.8 m12 m16 black zinc plated hex head ribbed neck bolt
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Carbon steel DIN931 grade 4.8 5.8 6.8 m12 m16 black zinc plated hex head ribbed neck bolt


  • Carbon steel DIN931 grade 4.8 5.8 6.8 m12 m16 black zinc plated hex head ribbed neck bolt
  • Carbon steel DIN931 grade 4.8 5.8 6.8 m12 m16 black zinc plated hex head ribbed neck bolt
  • Carbon steel DIN931 grade 4.8 5.8 6.8 m12 m16 black zinc plated hex head ribbed neck bolt
  • Carbon steel DIN931 grade 4.8 5.8 6.8 m12 m16 black zinc plated hex head ribbed neck bolt
  • Carbon steel DIN931 grade 4.8 5.8 6.8 m12 m16 black zinc plated hex head ribbed neck bolt
  • Carbon steel DIN931 grade 4.8 5.8 6.8 m12 m16 black zinc plated hex head ribbed neck bolt

Carbon steel DIN931 grade 4.8 5.8 6.8 m12 m16 black zinc plated hex head ribbed neck bolt

    Packaging: cartoon+pallet

Product Description

Product Description

Carbon Steel DIN931 grade 4.8 5.8 6.8 m12 m16 black zinc plated hex head ribbed neck bolt

A bolt is a form of threaded fastener with an external male thread. Bolts are thus closely related to, and 

often confused with, screws. A hex cap screw is a cap screw with a hexagonal head, designed to be driven

by a wrench (spanner). An ASME B18.2.1 compliant cap screw has somewhat tighter tolerances than a 

hex bolt for the head height and the shank length. The nature of the tolerance difference allows an ASME

B18.2.1 hex cap screw to always fit where a hex bolt is installed but a hex bolt could be slightly too large 

to be used where a hex cap screw is designed in.


Standard:
DIN,ASTM/ANSI JIS EN ISO,AS,GB
Material
Stainless Steel: SS201, SS303, SS304, SS316,SS316L,SS904L 
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
Machining and CNC for Customized fastener
Customized Products
Lead time
Busy season:15-30days,Slack seaon:10-15days
Stock Products
Carbon steel:Drop in anchor.wedge anchor.Shield anchor,expension bolt
Stainless steel: All DIN Or GB Standard stainless steel anchor
Free Samples for standard fastener
For more information visit:www.hainafastener.com
  • 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 professional factory supply Perfect fastening solution 
  • with 10 years experiences to solve your problem: Wide range of parts selection.
  • Customized Ideal Fasteners: customized services according to the samples and drawings 
  • offered.

1.How do you let me trust you.

We have own import & export right, and we are Gold mumber of alibaba and made in china, We get 

credit guarantee from Alibaba Group. you can make an order by alibaba to us directly. 

2.How about your price.

High quality products with reasonable price. Please give me a inquire, I will quoted you a price for you 

refer at once.

3. How do you control your quality.

We request QC inspect every productions links for each bacth goods.And we can provide you MTC 

and mill certificate when the goods is finished.

4.Could you provide free samples?

For new customer, We can provide free samples for standard fastener, But the clients will pay the 

express charges. For old customer,We will send you free samples and pay express charges by ourself.

5.Do you accept small order?

Sure, we can accept any orders, we keep lots of stock for ALL STAINLESS STEEL FASTENER, 

CARBON STEEL NUT AND PART BOLT,Like hex weld nut, cage nut, wing nut, square weld nut,

cap nut, hex nut,flange nut.Metric 8.8Grade,10.9Grade 12.9Grade Hex bolt and Hex Socket cap screw,

Part ASME Hex cap screw.

6.How about your delivery time

General speaking, if the goods is in stock, we can delivery them with 2-5days, If the quantity is 1-2container, we can give you with 18-25days,if the quantity is more than 2 container and you are very urgent, we can let factory priority 

produce your goods.

7.What is your packing.

Our packing is 20-25kg for one carton,36 or 48pcs cartons for one pallet. One pallets is about 900-960kg, We also can make customer’s logo on the cartons. Or we customized cartons according to 

customers’ requestment

8.What is your payment term

We can accept T/T,LC for general order ,Paypal and Western union for small order or samples 

order.

Suzhou Gubao Screws Co.,Ltd.

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Company Profile


Suzhou Gubao Screws Co.,Ltd.was founded in Oct 2010. In 2010, the first manufacturing equipment was purchased and product department was established. We specialized in precision electronic screws (Specification M1.2-M10).


In May 2016, some top fastener specialists joined us. Our specialty was expanded to non-standard high- difficulty fasteners. We purchased 3-die 6-blow cold heading machine. Now we are capable of producing M3-M20, M20*220 max.


For the past 11 years, we have developed a large amount of non-standard screws and bolts.


Company Info
  • Company Name: Suzhou Gubao Screws Co.,Ltd.
  • Representative: Hongyan.Li
  • Product/Service: T Bolt , Bullet Dowel Pin , Male Female Hose Standoff Spacer , Double Threaded Screw Bolt , Shoulder Screw Bolt , Non-Standard Fastener
  • Capital (Million US $): US$1 Million
  • Year Established: 2010
  • Total Annual Sales Volume (Million US $): US$1 Million - US$2.5 Million
  • Export Percentage: 21% - 30%
  • Total Annual Purchase Volume (Million US $): US$2.5 Million - US$5 Million
  • No. of Production Lines: Above20
  • No. of R&D Staff: 5 -10 People
  • No. of QC Staff: 5 -10 People
  • OEM Services Provided: yes
  • Factory Size (Sq.meters): 5,000-10,000 square meters
  • Factory Location: No22,Xiatang Street,Beiqiao Town,Xiangcheng Dist,Suzhou,China
  • Contact Person: Ms. Sally
  • Tel: +86-0512-67603441-8021