Metallics JFMP99SS 1/4-20 x 1/...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$50.61
$0.61
Metallics JFMP99SS 1/4-20 x 1/2 in. Flat Head Phillips Machine Screws - 18-8 Stainless - 100qty

Metallics JFMP99SS 1/4-20 x 1/2 in. Flat Head Phillips Machine Screws - 18-8 Stainless - Each

(No reviews yet) Write a Review

Model: JFMP99SS
Selected Model is

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

$50.61
$0.61
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like
1/4-20 x 1/2 in. Flat Head Phillips Machine Screws - 18-8 Stainless - 100qty

  • Features

    • Flat head with Phillips Drive
    • Stainless steel machine screws are used in applications which require general atmospheric corrosion resistance, in food processing machinery and refrigeration equipment.
    • Stainless is also superior to steel in withstanding some elevation in application operating temperature while maintaining its strength.
    • 1/4-20 Diameter, 1/2" Length
    • 18-8 Stainless Material

  • Additional Notes

    • Other sizes and quantities available by request | Hardness and tensile strength standards are offered as guides only for stainless machine screws. There is currently no national standard for these performance requirements for stainless machine screws.

Manufacturer Resources

Product Specs

Minimum Purchase:
100 units
Arra Compliant:
N
Buy American Compliant:
No
Dimensional Standard:
ASME B18.6.3-1998
Division:
Electrical H1
Drive Type:
Phillips
Driver Size:
#3
Fastener Head Height:
0.131 - 0.153 in.
Fastener Head Type:
Flat
Fastener Head Width:
0.442 - 0.477 in.
Fastener Length:
2-Jan
Field Application:
Electrical, Plumbing, Heating and Air Conditioning Industries
Gaging Diameter:
0.424
Hardness:
Rockwell B85-B95
Language Code:
EN
Material Standard:
SAE
Neurspe:
https://ideadigitalasset.com/DAMRoot/Original/10035/11237_ID-SPE-v1-ID-SPE-v1-Flat_Head_Mach_Screw.pdf
Order Minimum Imperial:
100
Order Minimum Uom Imperial:
JR
Pack Type:
Jar
Phillips Recess Depth:
0.16
Phillips Recess Diameter:
0.276
Phillips Recess Width:
0.036
Product Group:
Fasteners
Product Height:
2.15 in
Product Length:
3 in
Product Weight:
0.78 lbs
Product Width:
3 in
Protrusion Gaging Diameter:
0.029 - 0.050 Above
Sub Division:
Electrical-E H2
Tensile Strength:
1900 lb minimum
Thread Per Inch:
20
Thread Standard:
ANSI/ASME B1.1
Thread Type:
UNC
Department:
Electrical
Product Subgroup:
Screws
Product Type:
Machine Screw
Type2:
Machine Screw
Series:
FM and FMP
Product Details:
Machine Screw
Product Material:
18-8 Stainless

Metallics JFMP99SS – Frequently Asked Questions

1) Will a 1/4-20 x 1/2 in. flat head Phillips machine screw thread into a standard 1/4-20 tapped hole or nut?
Yes. The Metallics JFMP99SS is a 1/4-20 UNC screw at 20 threads per inch, made to ANSI/ASME B1.1, so it mates with any standard 1/4-20 coarse tapped hole, nut, or strut channel nut. Thread engagement is the limit, not the thread form: at 1/2 inch of length, you have very little grip once you subtract the material you are passing through.
2) Do these screws qualify for a Buy American or ARRA-funded project?
No. The Metallics JFMP99SS is neither Buy American compliant nor ARRA compliant, and country of origin is listed as multiple. On a federally funded job with domestic sourcing language in the spec, these will not pass submittal.
3) Which Phillips bit fits these 1/4-20 machine screws?
A #3 Phillips. The recess on the JFMP99SS measures 0.276 in. across and 0.16 in. deep, which is larger than the #2 most people keep in the gun. Driving it with a #2 will cam out and chew the recess, so keep a #3 bit in the pouch for these.
4) Are stainless machine screws the right choice for a wet or corrosive location?
For general atmospheric corrosion resistance, yes. These are 18-8 stainless, which is the grade specified for food processing machinery and refrigeration equipment, and it holds its strength better than plain steel as operating temperature climbs. For submerged or chloride-heavy service you want a 316 grade instead; 18-8 is the general-purpose austenitic stainless.
5) How do these Metallics flat head screws come packaged, and is there a minimum order?
They ship in a jar of 100, and 100 is the order minimum. That is the working pack for a truck or a shop drawer rather than a bulk box, so if you need a few thousand for a single job you are buying multiple jars.
6) What trades actually use a 1/4-20 x 1/2 flat head Phillips stainless screw?
Metallics lists these for the electrical, plumbing, heating and air conditioning trades. Typical use is fastening cover plates, panels, and equipment brackets where the head has to sit flush in a countersunk hole and the assembly sees moisture or washdown. The 1/2 inch length suits sheet metal and thin bracket stock, not thick sections.
How fast can I get the Metallics JFMP99SS 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 JFMP99SS come with a warranty?
Absolutely. The Metallics JFMP99SS 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 JFMP99SS?
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 JFMP99SS 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.
!