Black DIN 933 DIN 931 Hex Head Bolt High Strength Class 12.9

Name: Black DIN 933 DIN 931 Hex Head Bolt High Strength Class 12.9
Brand: Tianjin Longshi Fasteners Co., Ltd.
SKU: 1982466681

Tianjin, ChinaTianjin Longshi Fasteners Co., Ltd.

US$0.05

10,000-49,999 Pieces

US$0.03

50,000-99,999 Pieces

US$0.01

100,000+ Pieces

Sample price:US$0.20/piece.Request sample

Product profile

Customization

Available

Material

Carbon Steel, Stainless Steel, Alloy Steel

Type

Hexagon Head

Connection

Common Bolt

Head Style

Hexagonal

Standard

DIN, ANSI, GB, JIS, BSW, GOST

Grade

4.8/8.8/10.9/12.9

Application

Machinery, Chemical Industry, Environmental, Building

Finish

Black/Yzp/Bzp/HDG/Dacromet/Plain

Delivery

5-10 Days in Stock, 10-30 Days Not in Stock

Head Mark

Customized

Size

M3-M100

Thread Execution

Rolled Thread / Cut Thread

Thread Type

Metric Coarse / Metric Fine / Unc / Unf

Shank Structure

No Plain Shank / Fully Threaded Body

Load Performance

Uniform Clamping Force / High Tensile Strength

Surface Finish

Zinc Plated / Hot-DIP Galvanized / Black Oxide / D

Corrosion Resistance

Indoor / Outdoor / Salt Spray Tested

Tolerance Grade

6g / Custom Tolerance

Assembly Method

Nut + Washer / Tapped Hole Assembly

Application Scenario

Steel Structure / Machinery / Flange Connection /

Quality Control

Tensile Test / Hardness Test / Thread Gauge Inspec

Transport Package

Plastic Bags+Cartons+Pallets

Specification

as Request

Trademark

LS or Customized

Origin

Hebei, China

HS Code

731819

Production Capacity

50 Million Tons/Month

Key features

High Strength Class 12.9: Available in grades 4.8, 8.8, 10.9, and 12.9 for superior tensile strength.

8-Dimensional Customization: Customizable in material, specification, surface treatment, and more with 3D design support.

Low Minimum Order Quantity: MOQ of 100 pieces with no price premium for small orders.

Diverse Material Options: Available in Carbon Steel, Stainless Steel (304/316), and Alloy Steel.

Comprehensive Surface Finishes: Options include Zinc Plated, Hot-DIP Galvanized, Black Oxide, and Dacromet.

Real-Time Inventory Monitoring: Stockout rate under 0.1% with free upgraded alternatives for extreme shortages.

Free Technical Support: Dedicated 1v1 engineer team for installation guidance and drawing optimization.

Flexible Delivery Times: 5-10 days for stock items, 10-30 days for custom orders.

Company profile

R&D CapabilitiesStandardized quality controlFlexible CustomizationHigh Repeat Buyers Choice

Tianjin Longshi Fasteners Co., Ltd.

Tianjin, China

CertifiedBusiness Type: Trading Company CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 1 year CertifiedNearest Port: Tianjin PortAverage Response Time: ≤3.34h CertifiedTerms of Payment: LC, T/T, D/P, etc.

About Our Factory & Business Background

Address12f Block C, Junlong Square, Heping District, Tianjin, China

Plant Area20 square meters

Number of Employees4

Registered Capital1,000,000 RMB

International Commercial Terms(Incoterms)CIF, FOB, CFR, EXW

Average Lead TimePeak Season Lead Time: within 15 workdays Off Season Lead Time: within 15 workdays

Minimum Order Quantity1000 pcs

Supply Chain Partners20

Our Production Capability & Technical Expertise

Main ProductsScrew, Bolts, Nuts, Nails, Tapping Screw, Hexagon Head Bolts, Round Head Bolts, Countersunk Bolts, Double End Studs, Rivets

QA/QC inspectors1 people

Inspection Type for Finished ProductsRandom inspection(Visual inspection & Function inspection)

Inspection Method for Finished ProductsHave instructions and uniformly followed

R&D Engineers1 people

Traceability of Raw MaterialsYes

Our Industry Experience & Global Business Record

Year of Establishment2024-09-02

Main MarketsNorth America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe

Repeat Buyers Choice50%~80%

Number of Foreign Trading Staff2

Overseas Agent/BranchNo

New Products Launched in Last yearNo

Our Certifications, Standards & Industry Recognition

Cooperated with Fortune 500No

Product Q&A

Q:What is your minimum order quantity (MOQ)? Do you charge extra for small orders?

100 pieces MOQ (most peers require 1,000+), no price premium for small orders. First-time customers for cross-border e-commerce/trade get free samples.

Q:Do you support custom orders? How long does the customization process take?

Longshi Advantage: 8-dimensional customization (material, specification, surface treatment, etc.), with 3D design drawings + process plans.

Q:What if an item is out of stock?

Stockout rate <0.1% (peers: 10+%), with real-time inventory monitoring. For extreme stockouts, free upgraded alternatives are provided (peers often leave clients waiting indefinitely).

Q:Do you provide technical support, such as installation guidance or drawing optimization?

Dedicated 1v1 engineer team offering free technical support.

Q:Can I visit your factory or arrange a factory audit?

Support online factory tours (real-time video of production lines/laboratories) and offline visits (pick-up service available).