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Red Anodized Aluminum Thumb Screw – High-Collar Design for PCB Heat Sink Mounting (M3-M5)
Red Anodized Aluminum Thumb Screw – High-Collar Design for PCB Heat Sink Mounting (M3-M5)
Red Anodized Aluminum Thumb Screw – High-Collar Design for PCB Heat Sink Mounting (M3-M5)
Red Anodized Aluminum Thumb Screw – High-Collar Design for PCB Heat Sink Mounting (M3-M5)
Red Anodized Aluminum Thumb Screw – High-Collar Design for PCB Heat Sink Mounting (M3-M5)
Red Anodized Aluminum Thumb Screw – High-Collar Design for PCB Heat Sink Mounting (M3-M5)
Red Anodized Aluminum Thumb Screw – High-Collar Design for PCB Heat Sink Mounting (M3-M5)
Red Anodized Aluminum Thumb Screw – High-Collar Design for PCB Heat Sink Mounting (M3-M5)
Specifications
Brand Name :
FinExpress
Model Number :
Thumb Screw
Certification :
ISO9001|ISO14001| IATF16949
Place of Origin :
Guangdong, China, Guangdong,China (Mainland)
MOQ :
30000
Price :
$0.05/pieces 1000-49999 pieces
Payment Terms :
T/T, L/C, D/A, D/P
Supply Ability :
500000000 Piece/Pieces per Week
Delivery Time :
7~15 Working Day
Packaging Details :
1.1000pcs / plastic bag,20kgs/ carton ,then put on the wood pallet ,
2.Carton size:28cm*18cm*13cm,
3.Wood pallet size:118cm*113cm,Weight:700~800Kg Bulk:0.8 cubic
4.The weight of 20 FT Container:20~25 Tons
5,As your requirements
Finish :
Plain, Black Oxide, ZINC PLATED, Anodized
Material :
Brass, Stainless steel, Steel, Aluminium
Measurement system :
Metric
Head Style :
Flat, Round, Cheese
Standard :
Non-standard
Hardness :
HV250-600
Heat Treatment :
Non Hardening
Function :
Connection,Fastening and Decoration
Range of application :
Cabinet, Sheet metal, motors. Building decoration etc.
Sample :
Available free within 7days
Delivery time :
In stock 5~7 working days, customized 15~25 working days
Reliability test :
Mechanical dimentions, hardness test.Salt spray endurance test
MOQ :
1 piece in stock, 30,000 pcs customized
Port :
Shenzhen, Guangzhou
Description
Red Anodized Aluminum Thumb Screw – High-Collar Design for PCB Heat Sink Mounting (M3-M5)

Red Anodized Aluminum Thumb Screw – High-Collar Design for PCB Heat Sink Mounting (M3-M5)

Product Overview

Our Red Anodized Aluminum High-Collar Thumb Screw is engineered for secure, tool-free mounting of heat sinks and thermal solutions on printed circuit boards (PCBs). Featuring a lightweight aluminum body, non-conductive anodized finish, and ergonomic high-collar design, this screw ensures reliable thermal management while preventing electrical shorts. Ideal for electronics, IoT devices, and industrial controls requiring efficient heat dissipation and easy maintenance.

Key Features

✅ Anodized Aluminum 6061-T6

  • Non-Conductive Finish: Prevents electrical shorts in high-voltage PCB environments.
  • Corrosion & Wear Resistance: Withstands oxidation and repeated adjustments.

✅ High-Collar Design

  • Spacer Function: Elevates the thumb head above the PCB surface, improving airflow and grip.
  • Ergonomic Grip: Knurled or fluted collar for slip-resistant manual tightening.

✅ Metric Threads (M3–M5)

  • Precision Threads: M3×0.5mm, M4×0.7mm, M5×0.8mm for compatibility with heat sink mounting holes.
  • Thermal Stability: Aluminum’s low thermal resistance minimizes heat transfer to the screw.

✅ Vibrant Red Anodized Finish

  • Aesthetic & Functional: Color-coding for easy identification; enhances corrosion protection.
  • RoHS & REACH Compliant: Safe for electronics and industrial applications.
Red Anodized Aluminum Thumb Screw – High-Collar Design for PCB Heat Sink Mounting (M3-M5)Red Anodized Aluminum Thumb Screw – High-Collar Design for PCB Heat Sink Mounting (M3-M5)Red Anodized Aluminum Thumb Screw – High-Collar Design for PCB Heat Sink Mounting (M3-M5)Red Anodized Aluminum Thumb Screw – High-Collar Design for PCB Heat Sink Mounting (M3-M5)
Red Anodized Aluminum Thumb Screw – High-Collar Design for PCB Heat Sink Mounting (M3-M5)
Specification
More Detail Informations
Available Material
1.Stainless Steel: SS303, SS304, SS316, SS410, SS420;
2.Carbon steel: C1006,C1010,C1018,C1022,C1035K,C1045;
3.Brass: C3602,C3604,Hpb59,Hpb62,Hpb65,Hpb58,Hpb70 ;
4.Aluminum: Al6061, Al6063 etc
or as your requirements
Head type
CSK Head,Pan Head,Truss Head,Hexagon Head,Round Head,Oval Head,Button Head,Cap Head,Cheese Head,etc.
Hardness
Carbon Steel:HRC:28~35 ,HV450~700
Alloy Steel:HRC:32~39(grade10.9) HRC:39~44(grade12.9)
Finish
Zinc plated, Nickel plated, Bronze, Copper,Phosphate, Oxidation black, Passivation, Tin, Dacromet, Gold, Chrome, Silver,
Phosphorization,Zinc-nickel alloy plated etc.
Sample Available
The sample is free of charge if we have the existing tooling,you only need to pay for the freight cost
Delivery time
Samples time 3-5 working days, Lead time 20-25 working days
Pricing Term
EXW Dongguan(FCA),FOB, CIF, CNF, DDU,etc.
Packing
Bulk in PE bag or Small boxes.then in carton .pallet
Payment term
TT (30% in advance as deposit, balance before delivery) , L/C, Western Union,PayPal etc
Management system
ISO9001:2015
Certificate
ISO,ROHS
Why Choose Us

Red Anodized Aluminum Thumb Screw – High-Collar Design for PCB Heat Sink Mounting (M3-M5)Red Anodized Aluminum Thumb Screw – High-Collar Design for PCB Heat Sink Mounting (M3-M5)

Red Anodized Aluminum Thumb Screw – High-Collar Design for PCB Heat Sink Mounting (M3-M5)

Company Profile

Red Anodized Aluminum Thumb Screw – High-Collar Design for PCB Heat Sink Mounting (M3-M5)

Red Anodized Aluminum Thumb Screw – High-Collar Design for PCB Heat Sink Mounting (M3-M5)

Red Anodized Aluminum Thumb Screw – High-Collar Design for PCB Heat Sink Mounting (M3-M5)

Red Anodized Aluminum Thumb Screw – High-Collar Design for PCB Heat Sink Mounting (M3-M5)

FAQ
Q1: What is your main products and material supply?
A1: Our main products are Electronic screws,Sems screws,Tapping screws,Chicago screws,Shoulder screws etc. Special Non-standard studs,Turning parts and High-end precision complex CNC Machining parts etc.
A2: Carbon Steel, Alloy Steel, Aluminum alloy,Stainless Steel, Brass, Copper ,Titanium alloy or according to your requirement.
Q2: When can I get the price?
A: We usually offer you a quotation within 12 hours, and the special offer is not more than 24 hours.Any urgent cases, please contact us directly by phone or send email to us.
Q3: What about the transportation and delivery date?
A: If the weight of goods more than 80kg,Normally we use shipment to transprot the orders. It is about 20-30days . If the weight of goods less than 80kg,or there are urgent, we can send the goods via air express,It is 3~5 days.

Q4: What's your packing?What to do in case of damaged goods during transport?
A1: Our Normal packing is bulking in Cartons, less than 20 kgs/carton, 48 cartons / pallet. We also can pack products according to your requirement.
A2: To avoid any subsequent trouble regarding quality issue, we suggest you check the goods once you receive them. If there is any transport damaged or quality issue, don't forget take the detail pictures and contact us as soon as possible, we will properly handle it to make sure your loss to reduce to the smallest.
Q5: Can I get discounts?
A: Yes, for big order, frequent customers, we give reasonable discounts.
Q6: Do you have enough capacity?
A: Our production equipment is a new imported equipment. We have a group of skilled workers who have been working for more than 10 years. Their production experience is very rich and their skills are very skilled. The screws can be 30 million pcs/month. We have sufficient funds to ensure the normal operation of the factory.
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Red Anodized Aluminum Thumb Screw – High-Collar Design for PCB Heat Sink Mounting (M3-M5)

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Product Detail
Brand Name :
FinExpress
Model Number :
Thumb Screw
Certification :
ISO9001|ISO14001| IATF16949
Place of Origin :
Guangdong, China, Guangdong,China (Mainland)
MOQ :
30000
Price :
$0.05/pieces 1000-49999 pieces
Contact Supplier
Red Anodized Aluminum Thumb Screw – High-Collar Design for PCB Heat Sink Mounting (M3-M5)
Red Anodized Aluminum Thumb Screw – High-Collar Design for PCB Heat Sink Mounting (M3-M5)
Red Anodized Aluminum Thumb Screw – High-Collar Design for PCB Heat Sink Mounting (M3-M5)
Red Anodized Aluminum Thumb Screw – High-Collar Design for PCB Heat Sink Mounting (M3-M5)

Finexpress Precision Manufacturing (dongguan) Co., Ltd

Verified Supplier
1 Years
guangdong, dongguan
Since 2002
Business Type :
Manufacturer
Main Products :
Metal Screw Fastener, Threaded Insert Nut, Hex Standoff Spacer
Total Annual :
5000000-6000000
Employee Number :
101~200
Certification Level :
Verified Supplier
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