Best Hexagonal Flange Head Bolt

Prime-Line 9089734 Flange Bolts, Class 8.8 Metric, M12-1.75 X 30MM, Zinc Plated Steel, 25

Hex bolt with a circular flange under the head.
Flange eliminates need for separate washer.
Designed for use with a nut or a threaded hole of the same diameter and thread size.
Thread Type: Coarse, Thread Class: 6H, Point Style: Blunt.

Hexagonal hole shape prevents the head of the bolt from turning when securing the cleat.
Bolts mount flat to surface of the cleat with recessed holes.
Large bottom footprint for additional strength.

【High-Quality】The Flange is Made of high quality stainless steel material for perfect durability and strength, not easy to deform..
【Size】Bolt Hole Center to Center: 2 3/4".
【Easy to Use and Install】Quick Fix Flange is easy to use with equipped springs and bolts, wonderful replacement for the previous one..
【Wide Application】Universal for most vehicles and can repair your car very well and effectively..

Application: Perfect for 1.5L-2.5L engines.
Boost pressures are 7psi(.5 Bar) to 21psi(1.5 Bar).
Exhaust (Turbo Manifold) Flange: T3 T4 4 bolt Flange Patterns, Exhaust (Downpipe) Flange: Standard T3 5 bolt downpipe flange pattern.
Specification: [Compressor: Trim: 55/A/R: .5.
Professional installation is highly recommended (No Instruction Included).

A Hexagon Bolt is a threaded fastener with a hexagonal head shape, and are designed to be installed using a spanner. Hexagon bolts are favoured for their robust shape, which makes them suitable for more heavy-duty fastening applications. Hexagon bolts are also generally available in larger sizes than alternative fasteners..
As their name suggests, Full Thread Hexagon Bolts are fully threaded. This type of bolt is required when the shaft of a fastener is being inserted completely into a threaded hole. Fully Threaded Bolts are often used to securely fasten two threaded sections together..
Made from 18-8 stainless steel, FullerkregⓇ brand screws have good chemical resistance and may be mildly magnetic. Length is measured from under the head..
Screws that meet ASME specifications comply with these dimensional standards.DIMENSIONS: Diameter: 1/4" | Length: 2-1/2" | Thread Type: 20 tpi Coarse Thread (Standard).
Package includes ten each of bolts, hex nuts , Flat & Lock washers.

76 matching factory fit flange bolts that fit: KTM Husqvarna.
OE type torx head flange bolts with factory matching Dacromet plating.
Generous selection of Original Factory Matching fasteners.
Used for body work, plastics, seat, fork guards, and subframe on 2 and 4 stroke bikes.
Complete with 2 styles Factory Match radiator shroud bolts gold screws and M5 flange bolt type.

【Application】：Universal for Turbo Manifold with T25 Flange(T28 Flange can be converted to T25 Flange, Adrapter is needed). Perfect for all 1.5L-2.0L engine.
【Specification Size】Exhaust (Turbo Manifold) Flange: T25 4-Bolt Flange / Exhaust (Downpipe) Flange: 5-Bolt Flange.
【Horse Power】: Boost Horse Power up to 350BHP.
【Cooling Type】: Water and Oil Cooled. Oil Restrictor: Yes . [Oil Thread Size: M12*1.25 & Water Thread Size: M8*1.25].
【Important Notice】:1. This Turbo is not vehicle specific. It is compatible with a wide range of applications therefore please check the specifications and verify compatibility prior to placing your order. 2. Some modification may be required, professional installation is highly recommended (No Instruction Included).

Application: Exhaust spring bolt flange is universal for most vehicles and can repair your car very well and effectively..
Standard Specification: Quick fix flange repair pipeline assembly, Exhaust Flange Pipe meets strict quality control standards and can be used reliably..
Excellent Quality: Universal Exhaust Flange is made of high quality stainless steel material for perfect durability and strength, not easy to deform, has long service life..
Easy to Use: Quick Fix Exhaust Flange is easy to use with equipped springs and bolts, wonderful replacement for the previous old or broken one..
Function: 2.25in ID to 2.25in OD exhaust spring bolt flange, used for connection between pipe ends..

1-3/4 inch pipe, header tube connector flange, 4-into-2/2-into-1.
Bolt hole spacing: (A) 4-5/8 inch x (B) 3-1/4 inch.
There are no rubber binders or composite materials in Remflex exhaust gaskets so they will not shrink or harden due to time or temperature eliminating the need to go back and continually retighten the flange bolts.
Remflex exhaust gaskets come in a standard 1/8 Inch thickness and are designed to crush 50 percent allowing them to fill any pits or gaps in the flange surface up to 1/16 Inch.