High Quality Threaded Inserts Wire screw sleeve Stainless Steel 304 Helicoils
Threaded Inserts are cylindrical, metal bushings with features on the outside which lock them into a plastic or metal base material to anchor your fasteners.
ZOHA threaded Inserts provide high-quality, permanent, wear-resistant internal threads and are designed to be installed in molded or drilled holes in one simple step.
Material & Coatings:
Zoha thread inserts are made from a range of materials and with various coatings to suit virtually any type of equipment manufacturing.
| Material Type | Material Grade | Min. Tensile Strength at 20 ℃ | Max. Operating Temperature* | Typical Applications | Surface Coatings |
| Stainless Steel
304
321
316L |
0Cr18Ni9/0Cr19Ni9
1Cr18Ni9Ti
00Cr17Ni14Mo2
| >1400Mpa | 425℃ Short time
315℃ Long-term | All normal applications in all materials / Improved corrosion resistance / Salt water applications | No plating
Dry lubrication film
Cadmium plating
Sliver plating |
| Phosphor Bronze | QSn6.5-0.4
(CuSn6, C51900, C5191) | >1000Mpa | 300℃ Short time
250℃ Long-term | Copper parts / High resistance to some electrolytic couples | No plating
Cadmium plating |
| Iron Alloy | Nitronic 60
(AISI/ASTM Alloy 218, UNS S21800, HPA 50) | >1400Mpa | 425℃ Short time
315℃ Long-term | Valve Stems Pins / Brushes Roller bearings / Pump shafts and rings / Thread inserts / Fasteners | No plating
Dry film lubricant |
| High Temperature Alloy | Inconel X 750
(UNS N07750)
Nimonic 90
(UNS N09901) | >1400Mpa | 750℃ Short time
550℃ Long-term | Aerospace / Turbines / Corrosive Atmospheres / High temperature use | No plating
Sliver plating |
| (*) indicative values |
Package of Threaded Inserts Wire screw sleeve Stainless Steel 304 Helicoils
Package: Usually packed in boxes or bags, can be packed according to customer requirements.
Delivery: Usually within 3-5 working days after receipt of payment.
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Zoha Machinery Co., Ltd
ZOHA MACHINERY CO., LTD. is a professional supplier of thread
inserts and metal products. Since its establishment, ZOHA has
always adhered to the production and business philosophy of
"quality first, customer first", and is committed to providing
cost-effective fastener products and fastening system solutions for
various industries.
Now, ZOHA's main products include thread inserts and filters two
series. Thread inserts are tangless thread inserts , wire inserts
with tails, self tapping inserts, keylocking inserts and their
supporting tools. Filters are sintered mesh filter element,
corrugated filter element, wire-wound filter element, bag filters,
etc. Products are widely used in fields such as communication
electronics, aviation, aerospace, rail transit, ships, medical
treatment, industrial equipment. Through the continuous efforts of
ZOHA people, ZOHA products have been widely used in industries such
as aviation, aerospace, high-speed rail, large locomotives,
automotive manufacturing, power, machinery, as well as high-voltage
switchgear, tobacco, etc.
ZOHA, to create a global brand of Chinese steel wire thread inserts
and filter elements.
