Fastener Inserts China Factory: Self-Tapping Inserts Hardened Steel Customizable Color

• Customization: Available
• Material: Stainless Steel
• Type: Common
• Model NO.: Self-Tapping Inserts Hardened Steel
• Usage: Building, Machinery, Medical, Rocket, Shipping, Chemical
• Rotation Direction: Right Rotation
• Surface Finishing: F Colour,Zinc Plated
• Certification: ISO, CE, ISO9001 CE
• Customized: Customized
• Delivery: 20-30 Days
• Finish: Zinc Yellow Plated
• Packag Color: Customizable
• Thread Standard: Unc/Unf/Unef/Uns/Bsw/Bsf/Metric Coarse/Metric Fine
• Custom Order: Customization by Drawing/Sample
• Price Terms: Fob/CFR/CIF/DDP
• ODM/OEM: Available
• Service: Custom-Made Service
• Material Test Certificate: Have
• Sample: Provide Samples But Do Not Include Freight.
• Quality Control: 100% Quality Inspection
• Application: Connection,Fastening
• MOQ: 300kg
• Transport Package: Bulk Pack Small Boxed
• Specification: internal: M3-M20 External: M5-M26
• Trademark: Qewitco
• Origin: China
• HS Code: 731815
• Production Capacity: 10000ton/Year
• Package Size: 25.00cm * 25.00cm * 19.00cm
• Package Gross Weight: 25.000kg

Product Description

Product Description

Self-Tapping Inserts Hardened Steel

Designed for low shear strength yet high hardness materials, this insert forms strong, vibration-resistant, and wear-free internal threads, addressing common thread issues like slipping and wear, thus enhancing stability and lifespan of connected structures.

Core Product Advantages

Fine External Thread Design: Reduces installation torque, minimizes base material damage, ensuring smooth insertion. Achieves precise fixing without complex operations.

Tapered Guide Nose: Offers excellent positioning, facilitates alignment, improves assembly efficiency, and reduces difficulty.

Wide Cutting Slot Structure: Automatically cuts base material forming threads during insertion, removing pre-tapping need, simplifying installation for rapid assembly.

Dual Functions of Thread Repair and Reinforcement: Quickly repairs worn or damaged threads and reinforces for parts needing frequent disassembly, extending product life.

Convenient Installation Experience: Compatible with common equipment like drive tools and drills. Install without professional skills, lowering construction threshold.

Specification

Model NO.	Self-Tapping Inserts Hardened Steel
Material	Hardened Steel
Internal Size	M3-M20(Metric Coarse Thread)
External size	M5-M26
Finish	Zinc Yellow Plated,Zinc Plated
Delivery	15~30 days
OEM	Available
Sample	Free but not include shipping
Packaging	Small Boxed or Bulk Packaging
MOQ	300kg

Applicable Base Materials

· Compatible with various materials:
Cast iron
Brass
Bronze
Ferrous metals
Non-ferrous metals
Light metal alloys

· Meets needs of multiple industries:
Machinery manufacturing
Auto parts
Electronic equipment
Hardware tools

Mainly Product

Company Profile

QEWITCO FASTENER CO., LTD

Founded in 2003, QEWITCO FASTENER CO., LTD, a professional tools and fasteners manufacturer, is headquartered in Qingdao with a production base in Zhejiang. Close to Qingdao and Ningbo Ports, it benefits from the mature hardware manufacturing cluster, supporting R&D, production, and global delivery.

The company focuses on R&D, production, and sales of hardware tools like high-speed steel drill bits and fasteners. Adhering to "Customer First," it provides high-quality products and solutions globally. Exporting to 50+ countries, it serves over 2,000 customers, including manufacturers, distributors, and contractors.

For standard or custom solutions, our 24/7 online sales team offers expert support, ensuring swift responses to inquiries and orders. QEWITCO FASTENER CO., LTD aims to forge enduring partnerships, offering reliable quality, competitive pricing, and prompt service to become a trusted global partner in tools and fasteners.

Packaging & Shipping

Packaging

Bulk Packaging
Minimum Order Quantity (MOQ): 300 kg.
Payment Terms: T/T (30% advance, 70% against B/L), L/C at sight.
Sample Policy: Free samples (client covers shipping); delivery in 15~30 days.

Our Team

FAQ

Q: What if I don't know the right pilot hole size for my base material?
A: Check the pilot hole table or contact support with material specs for a recommendation.

Q: Can Type ES/302 inserts be reused after disassembly?
A: No, reuse is not recommended as it may weaken the connection or damage material.

Q: Is there an exception to the 300kg MOQ for small-batch trials?
A: Yes, new B2B customers can apply for 50-100kg trials by explaining their use case.

Q: What if received inserts have surface defects or size deviations?
A: Send defect photos and batch info to after-sales within 7 days for free replacement or refund.

Q: Do you offer OEM for non-standard thread sizes or lengths?
A: Yes, provide specs and volume; lead time is 25-40 days, with small test samples available.