Grade 9 Hex Cap Screws

Hex Cap Screws

Holo-Krome Grade 9
8640/8740 Alloy Steel

Unified National Round Coarse

H418 — UNRC Ecoguard Coating

ASME B18.2.1

 Holo-Krome Grade 9 Hex Cap Screws
Diameter d 1/4-20 5/16-18 3/8-16 7/16-14 1/2-13 9/16-12 5/8-11 3/4-10 7/8-9 1-8
Diameter Code 014 016 018 020 024 025 026 028 030 034
Length Code * = Stocked
1/2 0050 * * *
3/4 0075 * * * * *
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 * * * * * * * * * *
4 0400 * * * * * * * * * *
4 1/2 0450 * * * * * * * *
5 0500 * * * * * * * *
5 1/2 0550 * * * * * * *
6 0600 * * * * * * *
7 0700 * * * * *
8 0800 * * * * *
9 0900 * * * *
10 1000 * * * *
11 1100 * * * *
12 1200 * * * *
Order Number -> 1/4 x 2-1/2 = H418-014-0250 (Diameter Code x Length Code)

Back to Top

Hex Cap Screws

Holo-Krome Grade 9
8640/8740 Alloy Steel

Unified National Round Fine

H428 — UNRF Ecoguard Coating

ASME B18.2.1

Holo-Krome Grade 9 Hex Cap Screws
Diameter d 1/4-28 5/16-24 3/8-24 7/16-20 1/2-20 9/16-18 5/8-18 3/4-16 7/8-14 1-14
Diameter Code 014 016 018 020 024 025 026 028 030 034
Length Code * = Stocked
1/2 0050 * *
3/4 0075 * * *
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 1/2 0350 * * * * * * * *
4 0400 * * * * * * *
4 1/2 0450 * * * * *
5 0500 * * * * *
5 1/2 0550 * * * *
6 0600 * * * * *
7 0700 * * * * *
8 0800 * * * * *
9 0900 * * * *
10 1000 * * *
11 1100 * * *
12 1200 * * *
Order Number -> 1/4 x 2-1/2 = H428-014-0250 (Diameter Code x Length Code)

Back to Top

TOUGH gets TOUGHER

HOLO-KROME introduces its lineup of MADE IN THE USA Grade 9 products. Heavy machinery and equipment are often 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, Grade 9 Hex Cap Screws, completely capable of out-performing the competition.

PRODUCT SPECIFICATIONS

  • 180,000psi tensile (similar to ASTM A574)
  • 1000-hour EcoGuard™ Coating
  • Consistent Torque-Tension Relationship
  • No risk of hydrogen embrittlement
  • 1-to-1 replacement for current offering with improved corrosion resistance performance
  • Holo-Krome Quality
  • Full Stocking Product Line offering (10 diameters standard, 265 skus)
  • DFARS Compliant / 100% USA Melt
  • RoHS, ELV and REACH Compliant

TARGET INDUSTRIES & APPLICATIONS:

  • Construction
  • Forestry
  • Transportation
  • Agriculture
  • Machine Builders
  • Foundries
  • Underground Earth Moving Equipment
  • Cranes & Rigging
  • Highway Signage
  • Wastewater Processing Plants
Holo-Krome Grade 9 Hex Cap Screws

Back to Top