Metallics RSB78 3/8-16 x 1-1/2...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$192.86
Metallics RSB78 3/8-16 x 1-1/2 in. Round Head Combo Stove Bolt Screws with Hex Nut - Steel Zinc - 100qty

Metallics RSB78 3/8-16 x 1-1/2 in. Round Head Combo Stove Bolt Screws with Hex Nut - Steel Zinc - Each

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Model: RSB78
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$192.86
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3/8-16 x 1-1/2 in. Round Head Combo Stove Bolt Screws with Hex Nut - Steel Zinc - 100qty

  • Additional Notes

    • Standard Package Square Plastic Jar | Two drives in one head | other sizes and quantities available by request | Steel machine screws which have a nominal diameter smaller than #4 are not subject to tensile testing. No. 4 and No. 5 machine screws which are shorter than 1/2" are not subject to tensile testing. Steel machine screws of diameters No. 6 to 1/2" inclusive, which are shorter than either 1/2" or 3D (where D is the nominal screw size in inches) are not subject to tensile testing. Such steel machine screws of a size to be tested shall meet the tensile load requirements listed above.

  • Features

    • Round head with slotted and Phillips Drive
    • 3/8-16 Diameter, 1-1/2" Length
    • Steel Zinc Material
    • Hex Machine Screw Nut is designed to be used specifically with machine screws.
    • Includes Hex nut

Manufacturer Resources

Product Specs

Minimum Purchase:
100 units
Arra Compliant:
N
Buy American Compliant:
No
Dimensional Standard:
ANSI B18.6.3
Division:
Electrical H1
Drive Type:
Slotted/Phillips
Driver Size:
#4
Fastener Head Height:
0.237 - 0.256 in.
Fastener Head Type:
Round
Fastener Head Width:
0.67 - 0.708 in.
Fastener Length:
1/1/02
Field Application:
Electrical, Plumbing, Heating and Air Conditioning Industries
Hardness:
Rockwell B70-B100
Language Code:
EN
Material Standard:
AISI 1006 - 1022
Neurspe:
https://ideadigitalasset.com/DAMRoot/Original/10035/11237_ID-SPE-v1-ID-SPE-v1-Stove_Bolt.pdf
Order Minimum Imperial:
100
Order Minimum Uom Imperial:
JR
Pack Type:
Clamshell
Phillips Recess Depth:
0.228
Phillips Recess Diameter:
0.374 - 0.387
Phillips Recess Width:
0.064
Product Group:
Fasteners
Product Height:
7.25 in
Product Length:
4.5 in
Product Weight:
6.699 lbs
Product Width:
4.5 in
Slot Depth:
0.117 - 0.155
Slot Width:
0.081 - 0.094
Sub Division:
Electrical-E H2
Tensile Strength:
60000 psi minimum
Thread Per Inch:
16
Department:
Electrical
Product Subgroup:
Screws
Product Type:
Stove Bolt
Type2:
Stove Bolt
Series:
RSB
Product Finish:
Zinc
Product Details:
Stove Bolt
Product Material:
Steel Zinc

Metallics RSB78 – Frequently Asked Questions

1) Does the Metallics RSB78 stove bolt come with a nut, or do I order those separately?
A hex machine screw nut is included with each RSB78 bolt, matched to the 3/8-16 thread. That nut type is made specifically for machine screw threads, so you don't need to source a separate nut to land the bolt through a box, strap, or sheet metal bracket.
2) Is the Metallics RSB78 strong enough for hanging conduit and equipment supports?
The steel used is AISI 1006 to 1022, hardened to Rockwell B70-B100, with a 60,000 psi minimum tensile strength. That is standard low-carbon machine screw material, fine for electrical boxes, straps, hangers, and general mechanical attachment, but it is not a high-strength grade bolt. If a drawing calls out a graded structural fastener, this is not the part.
3) Does the RSB78 meet a recognized dimensional spec so it interchanges with other 3/8-16 machine screws?
Head, drive, and thread geometry conform to ANSI B18.6.3, the standard for slotted and recessed head machine screws. Any 3/8-16 nut or tapped hole built to that standard will accept it, so it drops in alongside existing 3/8-16 machine screw hardware.
4) Is the Metallics RSB78 Buy American or ARRA compliant for a government or public project?
No. The RSB78 is not Buy American compliant and is not ARRA compliant, with country of origin listed as multiple. On federally funded or public-agency work with domestic sourcing requirements, this bolt will not satisfy the spec.
5) What size driver do I need for the RSB78, and can I use a flat blade instead of a Phillips?
Either works. The RSB78 has a combination round head with both a slot and a Phillips recess, so you can drive it with a flat blade or a #4 Phillips driver. The slot runs 0.081 to 0.094 in. wide and 0.117 to 0.155 in. deep, and the Phillips recess is 0.374 to 0.387 in. across at 0.228 in. deep. Handy on service work where you only have one screwdriver on the belt.
6) Can these zinc stove bolts be used outdoors or in a damp mechanical room?
The RSB78 is steel with a zinc finish, which handles indoor and protected-damp conditions. Zinc plating on carbon steel is sacrificial and will eventually corrode in direct weather, salt, or wash-down areas, so for exterior or corrosive duty step up to a stainless fastener instead.
7) How many Metallics RSB78 bolts do I get, and how are they packaged?
They ship in a 100-piece jar quantity, with clamshell listed as the pack type. Metallics notes other sizes and quantities are available by request, so if you need a different length in the RSB stove bolt line it can be sourced.
8) What trades actually use a round head combo stove bolt like this?
Metallics lists the RSB stove bolt for the electrical, plumbing, heating and air conditioning industries. Typical use is bolting boxes, brackets, straps, and sheet metal together where you want a rounded, low-profile head and a nut on the back side rather than a tapped hole.
How fast can I get the Metallics RSB78 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Metallics RSB78 come with a warranty?
Absolutely. The Metallics RSB78 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Metallics RSB78?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Metallics RSB78 from ZenSupply?
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