KNURLED THREAD INSERT.jpg

ST series threaded insert is different from our standard type of blind rivet nut. The overall length is shorter than standard type which it allows to be used in small & narrow space.
Although it is short type but it can be installed into most any material with thickness over 0.03” (0.76mm).

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防鬆襯套,LOKSERT,螺?,金屬工業,襯套

KEY LOCKING THREADED INSERT-STEEL

When your assembly must endure vibration, stress, and tampering, choose the Steel Anti-Rotation Thread Insert — a solution that locks tight and holds firm.


? Physical locking pins – Prevent spinning even under high torque

? No exposed gaps or weak points – Hard to break or remove once installed

? Simple setup with standard tools – Just drill, tap, and install

? Universal compatibility – Supports Metric, Imperial, and spark plug thread specs

? Multi-purpose usage – Perfect for repairs, re-threading, reinforcement, and machinery rebuilds


For any technician, manufacturer, or mechanic who values security, reusability, and structural reliability, this steel locking insert is a must-have.


Material: Steel/ Stainless Steel

 

防鬆襯套,LOKSERT


防鬆襯套,LOKSERT



 


 


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SELF TAPPING THREAD INSERTS

SLOTTED SERIES

MATERIAL AVAILABLE: 

STEEL, STAINLESS STEEL 303 (A1), STAINLESS STEEL 316 (A4 / 18-10), BRASS C3604



SURFACE FINSIH AVAILABLE: 

CR3 WHITE/YELLOW ZINC PLATED

Damaged threads can be a nightmare—but with self-tapping thread inserts, repairs become quick and efficient. These inserts not only restore worn-out threads but also reinforce the base material, improving long-term performance.

Perfectly suited for aluminum and plastic components, they require no pre-threading, enabling fast and tool-friendly installation. Ideal for use in automotive engines, aerospace components, and lightweight machinery, they are a must-have for design engineers and repair professionals alike!
 
SELF TAPPING THREAD INSERTS - SLOTTED SERIES
 

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Having trouble with loose or stripped threads? Don’t replace the whole part – fix it with a professional Patch Insert! ??


?? Key Features:

?? 360° or 180° Nylon patch coating for built-in anti-loosening

?? Perfect for worn threads, stripped holes, or oversized openings

?? Temperature resistant from -30°C to 116°C

?? Just wait 24 hours after installation, and it’s good to go!


?? Materials: Steel (with trivalent zinc) or Stainless Steel (cleaned finish)

?? Custom sizes and materials available upon request!


#PatchInsert #ThreadRepair #AntiLooseningInsert #StrippedThreadFix #ThreadedInsert #NylonPatchScrew #CustomFasteners





 OTHER SIZE, MATERIAL ARE AVAILABLE UPON REQUEST 

Patch Insert

Thin Wall:

Patch Insert

Thick Wall:

Patch Insert



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BLIND RIVET NUT-WATERPROOF

FLAT HEAD RIVET, CLOSED END

BEM-C, BAI-C SERIES

 
MATERIAL AVAILABLE: 

STEEL, STAINLESS STEEL 302( INOX A2/18-8) AND 316 ( INOX A4/18-10), BRASS, ALUMINUM 5056



SURFACE FINSIH AVAILABLE: 

STEEL: CR3 WHITE/ YELLOW/ BLACK ZINC PLATED, CR3 ZINC NICKEL PLATED, NICKEL PLATED.

STAINLESS STEEL: CLEAN OR PASSIVATED.

BRASS: CLEAN

ALUMINUM: CLEAN



Designed for tough environments and sealing-critical applications, the BEM-C and BAI-C waterproof rivet nuts offer large flange stability and built-in water protection.

The wide flange ensures a firm grip and flush surface contact, creating a natural barrier against water ingress—perfect for enhancing product durability.

Ideal for use in automotive underbodies, outdoor electronics, or weather-exposed assemblies, these rivet nuts provide quick, one-sided installation, strong threads, and long-lasting reliability.

★ OEM and custom production options available to suit your exact engineering needs.

 OTHER SIZES, MATERIAL ARE AVAILABLE UPON REQUEST 

 NOTE: K= KNURLED BODY

STEEL BLIND RIVET NUT, STAINLESS STEEL BLIND RIVET NUT, STAINLESS STEEL 316 BLIND RIVET,Fasteners, rivet nut, inserts, rivet, nuts, screws, bolts, studs, blind rivet nuts , self-clinching, bolt rivet nuts, e self-driving nut, self-tapping threaded inserts, sex bolts, PEM nut, binding post, Chicago screw, barrel nut, post, special blind rivet, security fastener, blind jack nut, welding stud, hardware parts, construction hardware,BLIND NUT, RIVET NUT, TOP SCREW METAL CORP, TOPS SCREW METAL CORP,INSERT NUT

STEEL BLIND RIVET NUT, STAINLESS STEEL BLIND RIVET NUT, STAINLESS STEEL 316 BLIND RIVET,Fasteners, rivet nut, inserts, rivet, nuts, screws, bolts, studs, blind rivet nuts , self-clinching, bolt rivet nuts, e self-driving nut, self-tapping threaded inserts, sex bolts, PEM nut, binding post, Chicago screw, barrel nut, post, special blind rivet, security fastener, blind jack nut, welding stud, hardware parts, construction hardware,BLIND NUT, RIVET NUT, TOP SCREW METAL CORP, TOPS SCREW METAL CORP,INSERT NUT


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SCREW ANCHOR,捷克帽,傑克帽,BLIND JACK NUT,拉帽,捷克帽工具



BLIND JACK NUT TOOL


Struggling with manual Jack Nut installation?

? Hard to apply force?

? Tools not working well?

? Taking too long per hole?


Solve it all with just one tool — BLIND JACK NUT TOOL.


? Custom-fit for Jack Nut installation

? Single-hand operation = twice the efficiency

? Works with metal, plastic, and hollow panels

? Expands evenly and holds firmly – no slippage or misalignment


Whether you're assembling enclosures, installing automotive parts, or mounting control panels, this tool gets the job done quickly, cleanly, and securely.





Blind Jack Nut Tool


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SPLINED RIVET NUT
SMALL FLANGE, SPLINED RIVET NUT

TSSS SERIES

 

TSSS Knurled Small and Large Flange Rivet Nuts are engineered with a straight knurled body and flange versatility, offering a reliable solution for fastening in precision industries. Whether for automotive components or electronic enclosures, these rivet nuts ensure vibration resistance and long-lasting durability.


Product Advantages:




  • Straight knurls grip the base material tightly, preventing loosening




  • Large flange provides broader load distribution




  • Small flange suits compact or flush-mount applications




  • Compatible with aluminum, stainless steel, plastics, and more




Used in:




  • Automotive electronics mounting




  • Industrial devices, heat sinks, or chassis fastening




  • Consumer appliances and lightweight assemblies






 OTHER SIZES, MATERIAL ARE AVAILABLE UPON REQUEST


LARGE FLANGE, SPLINED RIVET NUT

TSBS SERIES



 

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SELF TAPPING THREADED INSERT

MANUAL INSTALLATION TOOLS


For strong, reliable insert installation, using the correct manual tool and drill diameter is essential.

Our manual threaded insert installation tools are designed for versatility—perfect for prototyping, small-batch production, and field repairs.

Though diameter charts are available for reference, real-world results vary depending on material hardness, assembly force, and insert type. We recommend performing sample tests to find the ideal hole size.

Also, when installing into through-hole components, ensure the insert length is shorter than the material thickness to maintain proper anchoring and avoid surface damage.

★ Compact, durable, and user-friendly—our tools are a must-have for precise insert installation.




 OTHER SIZE, MATERIAL ARE AVAILABLE UPON REQUEST


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Architectural Sex Bolts

ARCHITECTURAL SEX BOLTS

MATERIAL AVALIABLE:


STEEL, STAINLESS STEEL


Our building-use male-female fastener set is more than just hardware—it's your first line of defense against tampering. The smooth, dome-shaped nut head cannot be gripped by tools, making it extremely difficult to remove once installed.

Paired with a Phillips flat-head screw from the rear, it’s perfect for applications where clean design and security are priorities. Installation is tool-friendly, fast, and compatible with various materials like wood, aluminum, and plastic.

Widely used in window and door hardware, architectural fixtures, and public utilities, this fastener set offers custom options in size and material to meet every design challenge.


ARCHITECTURAL SEX BOLTS


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截斷式拉帽,ST SERIES ,KNURLED THREAD INSERT,螺?金屬,金屬工業

ST SERIES

KNURLED THREAD INSERT

Ever run into these issues on the job?

?? Not enough space to install a standard rivet nut?

?? Head sticks out too much?

?? Worried about material thickness?


It’s time to switch to the #Short-Body Rivet Nut.


? Compact length makes it perfect for tight or recessed areas.

? Flush-fit head keeps the surface smooth and clean.

? Works with material thicknesses of 0.03” (0.76mm) and above.


When space is limited, performance shouldn’t be. Use the right nut for the job — short, strong, and reliable.


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Metal & Turning Part
 
Looking for custom hardware or CNC machined components? We offer tailor-made production services based on your drawings, required dimensions, and preferred material or plating options—all in one go!
Whether it's stainless steel, aluminum, brass, or alloy materials, our skilled technicians and advanced CNC machines ensure precision, durability, and timely delivery.
Applications include: machine parts, electronic housings, custom fasteners, inserts, precision fittings, and more.

?? Contact us today at: +886-4-7237159

?? Email: recept@topscrew.com.tw
正黑體; font-size:30px; font-style:normal; font-variant-caps:normal; font-variant-ligatures:normal; font-weight:bold; letter-spacing:2px; margin:0px; max-width:100%; orphans:2; padding:0px; text-align:center; text-decoration:none; text-indent:0px; text-transform:none; white-space:normal; widows:2; word-spacing:0px">Metal & Turning Part

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Small but Critical – The Roof

Roof Washer
Let’s talk about a tiny part that plays a big role in roofing hardware – the Washer used with roof screws! ???
Positioned between the nut and the connected surface, it provides:

?? Surface protection – prevents scratches from the nut

?? Load distribution – avoids pressure concentration

?? Vibration resistance – helps prevent loosening over time
Typically made of metal or plastic, and shaped as a flat ring, the washer grips when compressed, preserving torque and reducing preload loss.
?? Ideal for roofing, steel structures, waterproof sealing, and more!
#RoofScrewWasher #HardwareBasics #AntiVibration #LoadDistribution #ConstructionTips #WasherFunction

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