Holo-Krome B7 Heavy Hex Cap Screws

B7 Heavy Hex Cap Screws

ASTM A193 B7
4140 Steel

Unified National Round Coarse - 2A

H440 — UNRC - 2A ASTM A193 B7

ASME B18.2.1

Holo-Krome B7 Heavy Hex Cap Screws Specification Diagram
Diameter d 1/2-13 5/8-11 3/4-10 7/8-9 1-8
FULLER Diameter Code 024 026 028 030 034
Length Code * = Stocked
1 0100 * * *
1 1/4 0125 * * *
1 1/2 0150 * * * *
1 3/4 0175 * * * *
2 0200 * * * * *
2 1/4 0225 * * * * *
2 1/2 0250 * * * * *
2 3/4 0275 * * * * *
3 0300 * * * * *
3 1/4 0325 * * * * *
3 1/2 0350 * * * * *
3 3/4 0375 * * * * *
4 0400 * * * * *
4 1/4 0425 * * * * *
4 1/2 0450 * * * * *
4 3/4 0475 * * * * *
5 0500 * * * * *
5 1/4 0525 * * *
5 1/2 0550 * * * * *
5 3/4 0575 *
6 0600 * * * * *
6 1/2 0650 * * * *
7 0700 * * * *
7 1/2 0750 * * *
8 0800 * * *
Order Number -> 1/2 x 2-1/2 = H440-024-0250 (Diameter Code x Length Code)

FASTENERS FOR THE OIL AND GAS INDUSTRY

HOLO-KROME introduces its lineup of MADE IN THE USA B7 Heavy Hex Cap Screws. Machinery and equipment used in the oil and gas industry is subject to some of the harshest conditions, both environmental and fatigue. Not only are these pieces of equipment designed to withstand these conditions, the fasteners used in assembly should be of equal strength. HOLO-KROME prides itself in manufacturing a line of world-class, 100% domestically manufactured, B7 Heavy Hex Cap Screws are completely capable of out-performing the competition.

PRODUCT SPECIFICATIONS

  • ASTM A193 Grade B7
  • 100% Made in the USA Holo-Krome Quality
  • Minimum tensile strength 125,000 PSI
  • Wider head than that of a standard hex bolt
  • 4140 Alloy Steel
  • Rockwell Hardness (HRC) 28-34
  • Greater bearing surface; distributes clamping load over greater area
  • Full Stocking Product Line
  • Available from 1/2" to 1" in diameter
  • RoHS & DFARS Compliant / 100% USA Melt

TARGET INDUSTRIES & APPLICATIONS:

  • Petrochemical
  • Power Generation (Solar, Nuclear, Oil, Coal, Natural Gas)
  • Paper and Pulp Facilities
  • High-Heat Applications
  • Compressors
  • Vacuum Products
  • Industrial Tank Fabrication
Holo-Krome B7 Heavy Hex Cap Screwsgas pipelineindustry gasmanometerstorage oil tanks

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