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Step bolts A394T-1 Carbon Steel Bolt ,Step Bolt diam 3/4"-10UNC x 9 1/4"Lg (Knurled) ASTM A394 TP 1 HDG
STEP Bolts
Step bolts are literally used as steps on steel communication and
electrical transmission towers. These bolts are generally provided
with two A194 grade 2H heavy hex nuts. One nut is tightened against
the thread run out. The unthreaded shank, or step length, typically
ranges from 6″ to 10″.
Step bolts are used for a variety of applications, including steel communication, electrical transmission towers, tower reinforcement and a host of other fastening jobs. The best step bolts feature low carbon steel bodies and high strength and are excellent for use with heavy hex nuts.
Heavy hex head structural bolts from QBH company help you secure steel-to-steel structural connections. These rugged steel bolts come in galvanized, hot dipped galvanized, yellow zinc and plain finishes.
ASTM A394 specification covers the chemical and mechanical requirements of hexagon and square-head zinc-coated steel bolts and atmospheric corrosion-resistant bolts for use in the construction of transmission towers, substations, and similar steel structures. The following types of bolts are: Type 0 includes hot-dip zinc-coated bolts made of low or medium carbon steel, Type 1 includes hot-dip zinc-coated bolts made of medium carbon steel, quenched and tempered, Type 2, and Type 3 includes bare, quenched, and tempered bolts made of weathering steel. Steel for the manufacture of bolts shall be made by any of the following processes: open-hearth, electric-furnace, or basic-oxygen. Type 1 bolts produced from medium carbon steel shall be quenched in a liquid medium from above the austenizing temperature. Type 1 bolts produced from medium carbon steel to which chromium, nickel, molybdenum, or boron were intentionally added shall be quenched only in oil from above the austenitizing temperature. Type 3 bolts shall be quenched only in oil from above the austenitizing temperature. Cold-headed Type 0 bolts shall be stress relief annealed before zinc coating to remove cold work effects such that the hardness measured anywhere on the surface or through the cross-section shall meet the requirement specified. Different tests shall be conducted in order to determine the following mechanical properties of bolts: hardness, tensile strength, and shear strength.
ASTM A394 bolts can be used for many different
applications that include fastening wood, steel, and other
construction materials for projects such as docks, bridges, highway
structures, and buildings. ASTM A394 Hex Bolts and ASTM A394 Hex
Head Bolts is some of the toughest fasteners. These ASME SA394
sturdy fasteners are used to connect heavy materials.
Bolts are externally threaded fasteners used in
industrial and construction applications for assembling two
unthreaded products together and available in hundreds of
combinations of materials, heads, threads, plating, heat treating,
and secondary operations. We are manufacturer & supplier of
ASTM A394 studs such as All-Thread, Tap-End, Double-End Studs, and
Combination Studs, different types of nuts such as Hex Nuts, Heavy
Hex Nuts, Overtapped Nuts, Tommy Hole Nuts, Spherical-Faced Nuts
and Full Threaded Rods, full thread rods, bonnet bolts, Carriage
Bolt in a variety of finishes and sizes from 1/2" to 3 1/2". In the
petroleum and chemical industry the fully threaded stud is the most
common ASTM A394 Bolt used for flanged connections. ASTM A394 Stud
bolts are available in all thread pitches (UNC/UNRC – UNF/UNRF –
8UN) diameters and metric sizes.
ASTM A394 Hex Cap Screws- also known as machine
bolts or hex bolts are available in various bolt grade markings and
strengths. Our ASTM A394 Nut Bolts Hex Bolts, Tab Bolts, Flange
Bolts, Carriage Bolts, Shoulder Bolts and T Head Bolts are used to
attach machine threaded fasteners when joining materials together.
Manufacturing
QBH company Bolt manufactures step bolts in
5/8″ diameter and 3/4″ diameter. Step bolts are high strength and
are typically manufactured to ASTM specification A449.
Finish
PLAIN ZP YZP BLACK HDG DACROMET GEOMET CHROME NICKEL AND SO ON
PACKING
QBH BULK
20-25KG/CTN,36CTNS/PALLET
20-30KG/BAGS,36BAGS/PALLET
ONE TON/BOXES
50KG/ IRON DRUM,12 IRON DRUMS/PALLET
QBH SMALL PACKING
Packing in small boxes according to customer’s requirements
Packing in plastic bag according to customer’s requirements
QBH PALLET TYPE
SOLID WOOD FUMIGATION PALLET
EURO Pallet
THREE SPLINT PALLET
WOODEN BOX
The advantages of QBH
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