1/4-20 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
- Hex Machine Screw Nut is designed to be used specifically with machine screws.
- Includes Hex nut
- Steel Zinc Material
- Round head with slotted and Phillips Drive
- 1/4-20 Diameter, 1-1/2" Length
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:
- 0.16 - 0.175 in.
- Fastener Head Type:
- Round
- Fastener Head Width:
- 0.443 - 0.472 in.
- Fastener Length:
- 1/1/02
- Field Application:
- Electrical, Plumbing, Heating, 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:
- 0.147
- Phillips Recess Diameter:
- 0.255 - 0.268
- Phillips Recess Width:
- 0.034
- Product Group:
- Fasteners
- Product Height:
- 4.57 in
- Product Length:
- 3 in
- Product Weight:
- 2.68 lbs
- Product Width:
- 3 in
- Slot Depth:
- 0.082 - 0.109
- Slot Width:
- 0.064 - 0.075
- Sub Division:
- Electrical-E H2
- Tensile Strength:
- 60000 psi minimum
- Thread Direction:
- Right Hand
- Thread Per Inch:
- 20
- 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 RSB103 – Frequently Asked Questions
1) Does the Metallics RSB103 stove bolt come with a nut, or do I order those separately?
A hex machine screw nut ships with each RSB103 bolt, so no separate nut order is needed. The nut is the hex machine screw type, sized specifically for machine screw threads rather than a general hex nut, which matters because the 1/4-20 thread needs the matching 20 threads per inch engagement.
2) Is the RSB103 stove bolt strong enough for structural or load-bearing use?
It is rated at 60,000 psi minimum tensile with a Rockwell B70 to B100 hardness, which is low carbon steel machine screw territory, not a graded structural bolt. Fine for mounting boxes, brackets, straps, and equipment; if a drawing calls for a Grade 5 or Grade 8 bolt, this is not a substitute.
3) Can these be used on a federal or Buy American job?
No. The RSB103 is not Buy American compliant and not ARRA compliant, with country of origin listed as multiple. If your contract carries a domestic sourcing clause, you need a domestically produced fastener instead.
4) What thread size and length is the RSB103 stove bolt?
1/4-20 thread, right hand, 1-1/2 inches long. The 20 threads per inch is the standard UNC coarse pitch for a 1/4 inch bolt, so it mates with any 1/4-20 tapped hole or nut.
5) Can I drive these with a Phillips bit, or do I need a flat blade?
Either. The RSB103 has a combination round head taking both a slotted and a Phillips drive, and the recess calls for a #4 driver. Handy on a panel or box job where you have one driver in hand and a mixed bag of fasteners.
6) How much material thickness can a 1-1/2 inch stove bolt clamp?
With 1-1/2 inches of overall length and the nut needing roughly its own height of thread engagement, the RSB103 handles stacked material a bit over an inch thick in practice. For strut, box, and bracket work that covers most two-part assemblies; thicker stacks need a longer bolt.
7) Are zinc plated stove bolts okay outdoors or in a damp mechanical room?
The RSB103 is steel with a zinc finish, which handles indoor and incidental moisture but is not a marine or sustained wet-location plating. For roof-mounted condensers, coastal sites, or anything standing in water, go stainless.
8) What standard do these Metallics stove bolts conform to?
Dimensions follow ANSI B18.6.3, the machine screw standard, and the steel is AISI 1006 to 1022. That means head, thread, and recess geometry match any other B18.6.3 1/4-20 round head screw, so they interchange with spec-conforming fasteners already on the job.
9) How are the RSB103 bolts packaged and what is the smallest quantity I can buy?
They sell in a 100 piece quantity, with the standard package being a square plastic jar. Other sizes and quantities are available by request.
10) What trades actually use a 1/4-20 combo stove bolt like this?
Metallics lists the RSB103 for the electrical, plumbing, heating, and air conditioning industries. In practice it is the general purpose bolt-and-nut for hanging boxes, securing straps and brackets, and fastening equipment panels where you need a through bolt rather than a tapped thread.
How fast can I get the Metallics RSB103 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 RSB103 come with a warranty?
Absolutely. The Metallics RSB103 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 RSB103?
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 RSB103 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.