Skip to main content

12 Point Flange Bolts Manufacturer

12 Point Flange Bolts (also known as 12 Point Flange Cap Screws) the head makes 12 points of contact with a wrench to handle more torque than a socket head or hex head screw. 12 Point Flange Bolts good for high-strength fastening, these screws are made from steel comparable in strength to Grade 9 steel. Use them for heavy duty stamping applications as well as earth-moving machinery, such as bulldozers and excavators.  

Custom Made
​12 Point Bolts

King Tower provide 12 Point Bolts to a wide range of industries needing OEM/MRO or custom-designed solutions.

12-Point Flange Bolts Specification Format

 Product Name 12 Points Flange Bolts
 Place of Original China
 StandardISO 4017, DIN931, GB5783, DIN, ASTM, ANSI, JIS, EN, AS
 12 Point Flange Bolts Diameter M3 - M20
 12 Point Flange Bolts Length 6mm - 150mm
Head TypeHex, Square, Round, Hex flange, Flat, T-head & Triangula
 Driver StylePhil, Slotted, Hex socket, Torx & square slot etc
 Material Steel, Alloy Steel, Stainless Steel
Surface TreatmentElectroplating (color, blue, white, black zinc, Ni, Cr, tin, copper, silver),
Black Oxide, Passivation, Polish, Geomet, Dacroment, Anodization, Nickel plated, Zinc-Nickel plated, Brass Plated, Tin Plated ect.
Manufacturing ProcessWire Drawing, Cold Heading,Thread Rolling, Heat Treatment, Surface Plating, Inspection, Packing
Delivery DateRegular product is about 7-15 days, custom product will according to special requirement
 Certificate IATF16949:2015, ISO9001

12-Point Flange Bolts Metric/Imperial Thread Chart

 Thread    SizeM3 #51/8''  M4 #8 3/16'' #10 M5 M6 1/4''5/16''  M8 3/8'' M10 7/16''
Dimeter
mm
 3.0 3.17 3.174.0  4.16 4.76 4.825.0  6.0 6.35 7.93 8.0 9.52 10.0 11.11
 UNC Pitch 0.50.63 0.63 0.7 0.79 1.05 1.05 0.8 1.0 1.271.41 1.25 1.581.5 1.81 
 UNF Pitch 0.35 0.57 0.57 0.5 0.70 0.79 0.79 0.5 0.5 0.90 1.05 1.0 1.05 1.0 1.27
 Thread    Size M121/2''M14 9/16'' 5/8'' M16M18 3/4'' M207/8''M241''
Dimeter
mm
 12.0 12.7 14.014.28 15.8716.0 18.019.05 20.0 22.22 24.0 25.4
UNC Pitch 1.751.952.00 2.11 2.30 2.0 2.5 2.54 2.5 2.823.0 3.17

 UNF Pitch 1.5/1 1.27 1.50 1.41 1.41 1.50 2.0 1.58 2/1.5 1.81 2/1.5 2.11
Fastener Suppliers Worth Paying Attention to

King-Tower over 20 years specializing in manufacturing non-standard fasteners to specific industrial needs.

Over 200 Units Produced Machine

King Tower equipped with different production machine contain cold heading forming machine, thread rolling machine, programmable CNC machines, automatic lathe machines, spring machine and stamping machine, and include secondary process like drilling, cutting and grooving, total machine over 200 units  to meet the complex fastener production.

Diverse range of test machines to ensure the quality and functionality

King Tower with a comprehensive array of testing machinery, that can meticulously assess various aspects, including salt spray test machine, two-dimensional image measuring instrument, hardness test machine, optical image screening machine and torque machine. 

Diversity of customized fasteners

King Tower produced screw thread diameter from 0.8mm to 20mm, length from 2mm to 400mm, with specialized material include carbon/alloy steel, stainless steel, aluminum, brass and titanium. Full rang of surface treatment including plating, electrophoresis, coating, Dacromet, laser engraving and vacuum coating.

Start Your Project

Get your project moving today. Contact us for a quote on a custom part, pricing, lead time, or other questions. Our team will get back to you within 1-2 hours on business days, and will be sure to route you to the best person to support your needs.