Fasteners Manufacturing Alloy Steel Hexagon Socket Head Black Screws Bolts

Name: Fasteners Manufacturing Alloy Steel Hexagon Socket Head Black Screws Bolts
Brand: Tianjin Longshi Fasteners Co., Ltd.
SKU: 2069090822

Tianjin, ChinaTianjin Longshi Fasteners Co., Ltd.

US$0.20

10,000-49,999 Pieces

US$0.10

50,000-99,999 Pieces

US$0.09

100,000+ Pieces

Sample price:US$0.20/piece.Request sample

Product profile

Customization

Available

Material

Carbon Steel, Stainless Steel, Alloy Steel

Type

Round Head

Model NO.

DIN 912 / ISO 4762 / ANSI B18.3

Connection

Common Bolt

Head Style

Socket Head / Button Head / Countersunk Head

Standard

DIN, ANSI, GB, JIS, BSW, GOST

Grade

8.8 / 10.9 / 12.9 / A2-70 / A4-80

Application

Machinery, Chemical Industry, Environmental, Building

Finish

Black Oxide / Zinc Plated / Nickel-Plated / Dacrom

Delivery

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

Size

M3-M100

Customized

Yes

Thread Type

Metric / Unc / Unf / Custom

Feature

High Torque Capacity / Compact Head / Precision Fi

Mechanical Property

Class 8.8 / 10.9 / 12.9 / A2-70 / A4-80

Thread Execution

Rolled Thread / Cut Thread

Thread Coverage

Full Thread / Partial Thread

Shank Type

Plain Shank / Reduced Shank

Corrosion Resistance

Indoor / Outdoor / Salt Spray Tested

Tolerance Grade

6g / Custom Tolerance

Torque Performance

High Torque Transmission / Anti Cam-out

Application Scenario

Precision Machinery / Mold Industry / Automotive /

Quality Control

Hardness Test / Torque Test / Thread Gauge Inspect

Transport Package

Plastic Bags+Cartons+Pallets

Specification

as Request

Trademark

LS or Customized

Origin

Hebei, China

HS Code

731815

Production Capacity

50 Million Tons/Month

Key features

8-Dimensional Customization: Supports customization in material, specification, surface treatment, thread type, and more with 3D design drawings.

Low Minimum Order Quantity: Accepts orders as low as 100 pieces with no price premium for small quantities.

High Torque Transmission: Hexagonal internal drive design enables high torque capacity and flush installation.

Wide Material Selection: Available in Carbon Steel, Stainless Steel (304/316), and Alloy Steel with grades 8.8 to 12.9.

Comprehensive Surface Finishes: Options include Black Oxide, Zinc Plated, Nickel-Plated, and Dacrom for various corrosion needs.

Diverse Thread Options: Offers Metric, UNC, UNF, and custom thread types with rolled or cut execution.

Strict Quality Control: Includes hardness tests, torque tests, and thread gauge inspections for every batch.

Fast Delivery Options: 5-10 days for stock items and 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: ≤2.49h 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).