China factories

Chat Now Send Email
China factory - Hunan Jia Shan Hardware Tech Co., Ltd.

Hunan Jia Shan Hardware Tech Co., Ltd.

  • China ,Hunan
  • Verified Supplier
  1. Home
  2. Products
  3. About Us
  4. Contact Us

Leave a Message

we will call you back quickly!

Submit Requirement
China 2.2 2.9 3.5 B8 B8m B8t Astm A453 Gr660 A286 Cross Recessed Pan Head Tapping
China 2.2 2.9 3.5 B8 B8m B8t Astm A453 Gr660 A286 Cross Recessed Pan Head Tapping

  1. China 2.2 2.9 3.5 B8 B8m B8t Astm A453 Gr660 A286 Cross Recessed Pan Head Tapping
  2. China 2.2 2.9 3.5 B8 B8m B8t Astm A453 Gr660 A286 Cross Recessed Pan Head Tapping
  3. China 2.2 2.9 3.5 B8 B8m B8t Astm A453 Gr660 A286 Cross Recessed Pan Head Tapping
  4. China 2.2 2.9 3.5 B8 B8m B8t Astm A453 Gr660 A286 Cross Recessed Pan Head Tapping

2.2 2.9 3.5 B8 B8m B8t Astm A453 Gr660 A286 Cross Recessed Pan Head Tapping

  1. MOQ: 10pcs
  2. Price: $0.01~2.56,Piece/Pieces
  3. Get Latest Price
Payment Terms L/C,D/A,D/P,T/T
Supply Ability 10000,Piece/Pieces,Month
Delivery Time about 12-18days
Packaging Details Plastic Bag+Chipboard Carton+Plywood Pallet Pallet with Belt&Plastic Film.
Product name SEMS SCREW
Service OEM
Corrosion Resistance Yes
Port Shenzhen, Guangzhou
Corrosionresistance High
Thread Type Standard/Customization
Package Plastic Bag+Chipboard Carton+Plywood Pallet Pallet with Belt&Plastic Film.
Finish customized
Brand Name JIASHAN
Certification ISO 9001
Place of Origin china

View Detail Information

Inquiry by Email Get Latest Price
Chat online Now Ask for best deal
  1. Product Details
  2. Company Details

Product Specification

Payment Terms L/C,D/A,D/P,T/T Supply Ability 10000,Piece/Pieces,Month
Delivery Time about 12-18days Packaging Details Plastic Bag+Chipboard Carton+Plywood Pallet Pallet with Belt&Plastic Film.
Product name SEMS SCREW Service OEM
Corrosion Resistance Yes Port Shenzhen, Guangzhou
Corrosionresistance High Thread Type Standard/Customization
Package Plastic Bag+Chipboard Carton+Plywood Pallet Pallet with Belt&Plastic Film. Finish customized
Brand Name JIASHAN Certification ISO 9001
Place of Origin china
High Light A286 cross recessed pan head screwsASTM A453 Gr660 tapping screwsB8 B8m B8t metal screws with washer
2.2 2.9 3.5 B8 B8m B8t Astm A453 Gr660 A286 Cross Recessed Pan Head Tapping Screws And Plain Washer

Product Description

These miniature tapping screws (diameters 2.2mm, 2.9mm, 3.5mm) are designed for extreme high‑temperature service. The material conforms to ASTM A193 (B8, B8M, B8T) or ASTM A453 Grade 660 (A286 superalloy). These alloys retain significant strength up to 650‑700°C while resisting oxidation and creep. The screw has a cross recessed pan head and a plain flat washer (same material) pre‑assembled. The tapping thread cuts its own mating thread into metal sheet or cast holes, eliminating pre‑tapping. Typical applications include exhaust systems, furnace components and turbine accessories.

Applications
Industry Usage
Automotive High-strength applications in engines, heavy-duty machinery, and bridge construction
Mechanical Connecting mechanical parts, circuit boards, engines, transmissions in various industries
Energy Connecting power generation equipment and transmission lines
Architectural Building structures, shipbuilding, and petrochemical equipment
  • Automotive exhaust manifolds and catalytic converter shells – temperatures up to 800°C (A286).
  • Industrial kilns and burners – fixing refractory liners, thermocouple sleeves.
  • Gas turbines and turbocharger housings – high‑temperature bolting.
  • Petrochemical cracking furnace attachments – B8T resists intergranular corrosion.
  • High‑temperature sensor housings – miniature sizes for tight spaces.
Key Features
  • Ultra‑high temperature capability – A286 retains >600 MPa at 650°C.
  • Self‑tapping design – no need to pre‑tap holes in high‑alloy castings.
  • Miniature precision – 2.2mm diameter fits compact high‑temp electronics.
  • Heat‑resistant washer integrated – prevents preload loss.
  • Multiple alloy options – B8M for chloride‑rich high‑temp environments, B8T for sensitisation resistance.
Company Information
Manufacturing facility for stainless steel wheel screws Quality control inspection of industrial bolts Warehouse storage of various fastener products Packaging process for stainless steel fasteners
Frequently Asked Questions
Q: Are you trading company or manufacturer?
A: We are factory and OEM are available.
Q: How long is your delivery time?
A: Generally 7-10 days if in stock, or 15-20 days if not in stock (depending on quantity).
Q: Do you provide samples? Is it free or extra?
A: Yes, we offer free samples but customers pay the freight cost.
Q: What are your payment terms?
A: 30% T/T in advance, balance before shipment or L/C.

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory
  • Business Type:

    Manufacturer,Exporter,Seller

  • Year Established:

    2007

  • Total Annual:

    15000000-20000000

  • Employee Number:

    100~200

  • Ecer Certification:

    Verified Supplier

Hunan Jiashan Hardware Tech as a branch company of J AND R METALWORK,established in 2007 and located in Changsha, Hunan, China.After almost 17 years management development and technical improvement, Jiashan is willing to be a leading supplier in hardware industry. Meanwhile, we are one of member of ... Hunan Jiashan Hardware Tech as a branch company of J AND R METALWORK,established in 2007 and located in Changsha, Hunan, China.After almost 17 years management development and technical improvement, Jiashan is willing to be a leading supplier in hardware industry. Meanwhile, we are one of member of ...

+ Read More

Get in touch with us

  • Reach Us
  • Hunan Jia Shan Hardware Tech Co., Ltd.
  • 1st Floor,Building 8 Phase II Factory Building,No.8 Lutian Road,Lugu Base,Lugu Street,Xiangjiang New Area,Hunan Province.Postal Code:410205
  • https://www.cnc-partsmachining.com/

Leave a Message, we will call you back quickly!

Email

Check your email

Phone Number

Check your phone number

Requirement Details

Your message must be between 20-3,000 characters!

Submit Requirement