The ASTM F3125 Grade F2280, (Also known as A490 TC bolts) specification cover heat treated, steel, tension control bolt-nut-washer assemblies, also referred to as “sets.”

2014年9月29日 · The chemical composition of the tension control bolts, nuts, and washers shall conform to the requirements specified. The assembly lot tension test shall be performed on fastener assemblies to determine the ability of the assembly to provide the …

2009年1月13日 · F2280 is a TC bolt made to an A490 spec. So in reading 1.5 this is "considered an acceptable alternate under this specification for two years years following initial publication". See footnote 1. Does that mean since it was originally approved in 2006, and now its more than two years later that F2280 is no longer an approved alternate?

1.1 This specification covers two types of heat treated, steel, tension control bolt-nut-washer assemblies, also referred to as “sets,” having a tensile strength of 150 to 173 ksi.

F2280 Tension Control Bolts (A490) Tension Control Bolts or TC Bolts are a heavy duty bolt-nut-washer assembly used in steel frame construction. The TC Bolt head is not designed to be driven. The end of the shank has a spline, when engaged by an electric shear wrench it prevents the bolt from turning while the nut is tightened.

2025年3月22日 · ASTM F2280-08的发布历史信息,1.1 本规范涵盖两种类型的热处理钢制张力控制螺栓螺母垫圈组件，也称为“套件”、“套件”。 具有150至173ksi的拉伸强度。 这些组件能够在安装时通过向螺母施加扭矩来产生最小预定张力，同时使用适当的花键驱动安装工具施加反扭矩以将花键端部与螺栓主体分离。 1.2 组件由带花键端部.

The A325 F1852 & A490 F2280 controlled-tension “breakoff” bolt is designed to shear off the grooved spline and complete tightening to a prescribed minimum tension. This insures that the bolt tension achieved is by the “turn-of-nut” method of …

This document provides specifications for round head tension control structural bolts according to ASTM F2280 Type 1. It lists dimensional requirements for bolt size, length, diameter, thread length and other characteristics.

7/8-9 X 2 1/2 Tension Control Bolt ASTM F3125 Grade F2280 DH Nut & F436 F/W Plain

2025年3月19日 · Tension Control Bolts are pre-assembled bolt, nut and washer designed for use in steel frame construction. The head of the bolt is usually domed, and the end of the shank …