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H90 H80 H70 H62 H59 Brass Bronze Red Copper Combination Of Hex Meatl Screw With Nut And Washer
Product Description
This combination fastener is made from copper alloys: brass (grades H90, H80, H70, H62, H59), bronze or red copper. The bolt is a hex head screw to DIN933 (full thread) or DIN931 (partial thread), supplied together with a DIN934 hex nut and copper flat/spring washers. Copper alloys offer excellent electrical and thermal conductivity, non‑magnetic properties, low friction and are non‑sparking. The combination is ideal for electrical grounding, explosion‑proof equipment, marine environments and decorative applications. The colour ranges from reddish (high copper content) to golden yellow.
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
Electrical grounding busbars and transformer terminals – low contact resistance.
Explosion‑proof electrical equipment – non‑sparking in mines or petrochemical plants.
Marine and desalination piping – bronze resists seawater galvanic corrosion.
Musical instruments and luxury furniture – vintage appearance.
RF shielding and MRI room grounding – non‑magnetic.
Key Features
High electrical/thermal conductivity – up to 90% IACS for pure copper.
Wide alloy selection – H90 soft and formable, H59 hard and wear‑resistant.
Complete combination kit – bolt, nut, and washers from one source.
Company Information
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 ...