8 x 3 in. 1/4 Indented Hex Head Slotted Sharp Point Tapping Screws - 18-8 Stainless - 100qty
Features
- 18-8 Stainless Material
- Fastening stainless steel parts to aluminum or steel can cause a type of corrosion known as a galvanic couple in some environments.
- Hex 1/4 Head with slotted Drive
- 8 Diameter, 3" Length
Additional Notes
- Other sizes and quantities available by request | Dimensions for #9 diameter are independent of ASME B18.6.4
Manufacturer Resources
Product Specs
- Minimum Purchase:
- 100 units
- Arra Compliant:
- C
- Buy American Compliant:
- C
- Dimensional Standard:
- ASME B18.6.3-2010
- Division:
- Electrical H1
- Drive Type:
- Hex/Slotted
- Fastener Head Height:
- 0.096 - 0.11 in.
- Fastener Head Type:
- Indented Hex
- Fastener Head Width:
- 0.244 - 0.25 in.
- Fastener Length:
- 3
- Hardness:
- RockweII C28-38
- Language Code:
- EN
- Neurspe:
- https://ideadigitalasset.com/DAMRoot/Original/10035/11237_ID-SPE-v1-ID-SPE-v1-Indent_Hex_Head_Slot_TS.pdf
- Order Minimum Imperial:
- 100
- Order Minimum Uom Imperial:
- CT
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Product Height:
- 2.15 in
- Product Length:
- 3 in
- Product Weight:
- 1.4 lbs
- Product Width:
- 3 in
- Screw Point Type:
- Gimlet Point
- Slot Depth:
- 0.052 - 0.066
- Slot Width:
- 0.045 - 0.054
- Sub Division:
- Electrical-E H2
- Thread Per Inch:
- 15
- Thread Standard:
- ASME B18.6.4
- Washer Od:
- 0.322 - 0.348 in.
- Washer Thickness:
- 0.019 - 0.031 IN
- Width Across Corners:
- 0.272
- Department:
- Electrical
- Product Subgroup:
- Screws
- Product Type:
- Type A Tapping Screw
- Type2:
- Type A Tapping Screw
- Series:
- JDS
- Product Details:
- Type A Tapping Screw
- Product Material:
- 18-8 Stainless
Metallics JDS192SS – Frequently Asked Questions
1) What size is the Metallics JDS192SS tapping screw, and how many come in a jar?
It's a #8 diameter by 3 inch long Type A tapping screw with 15 threads per inch. It ships in a jar, with an order minimum of 100 count.
2) Will a stainless tapping screw cause corrosion if I fasten into aluminum or steel?
It can. These are 18-8 stainless, and driving stainless into aluminum or steel can set up a galvanic couple in some environments. Outdoors or anywhere damp, isolate the joint or pick a fastener matched to the base metal. In dry interior work it's usually a non-issue.
3) Do these sharp point screws need a pilot hole?
The JDS192SS has a gimlet (sharp) point, so it pierces and taps thin sheet and soft substrates on its own. In heavier gauge steel or hardwood, drill a pilot: as a Type A tapping screw it forms its own thread but does not drill. Case hardness runs Rockwell C28-38 at the thread.
4) Can I drive these hex head screws with a nut driver, or do I need a screwdriver?
Either works. The head is an indented hex with a slot cut in it, so you can run it with a 1/4 inch nut driver or back it out with a flat blade. Head width measures 0.244 to 0.25 in., width across corners 0.272, slot width 0.045 to 0.054 and slot depth 0.052 to 0.066.
5) Are these Metallics screws Buy American and ARRA compliant for a government job?
Both flags read compliant on the JDS192SS, ARRA and Buy American. Country of origin is listed as multiple, so if your spec requires a single documented origin, request it at time of order.
6) Does this screw have an integral washer under the head?
Yes, the head is formed with a washer face measuring 0.322 to 0.348 in. outside diameter and 0.019 to 0.031 in. thick, with head height of 0.096 to 0.11 in. That bearing surface spreads load on sheet metal and keeps the head from pulling through thin material.
7) What standard do these indented hex head tapping screws conform to?
Head dimensions follow ASME B18.6.3-2010 and the thread follows ASME B18.6.4. Note that #9 diameter dimensions in this family are independent of B18.6.4; this one is a #8.
8) Can I get the JDS192SS screw in a different length or pack quantity?
The JDS192SS itself is fixed at #8 x 3 in. in a 100 count jar, but other sizes and quantities in this Metallics JDS tapping screw line are available by request.
9) What does a 100-count jar of these 3 inch stainless screws weigh?
Product weight is listed at 1.4 lbs for the jar. Useful if you're calculating a truck or box load on a large MRO restock.
How fast can I get the Metallics JDS192SS delivered?
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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 JDS192SS come with a warranty?
Absolutely. The Metallics JDS192SS is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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