We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

JW WINCO Hygienic Hex Head Screws: Stainless Steel, Partially Threaded, M4, 14 mm Min Thread Lg - Low-Profile Hygienic Hex Head Screws with Sealing Washer
JW WINCOLow-Profile Hygienic Hex Head Screws with Sealing Washer

JW WINCO Hygienic Hex Head Screws: Stainless Steel, Partially Threaded, M4, 14 mm Min Thread Lg

JW WINCO Hygienic Hex Head Screws are low-profile, partially threaded M4 fasteners in Grade 316L stainless steel, featuring a 14 mm minimum thread length and an FDA-approved pre-mounted sealing washer. These screws…

SKU 3G-OTH-529310

Brand
JW WINCO
Item
Hygienic Hex Head Screws: Stainless Steel, Partially Threaded, M4, 14 mm Min Thread Lg
Category
Low-Profile Hygienic Hex Head Screws with Sealing Washer
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

JW WINCO
Manufacturer Part Number
1581-M4-25-MT-H
Type
Partially Threaded, M4, Grade 316L
Thread Lg
14 mm Min
Washer Type
FDA-Approved Pre-Mounted Sealing
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

JW WINCO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

JW WINCO Hygienic Hex Head Screws are low-profile, partially threaded M4 fasteners in Grade 316L stainless steel, featuring a 14 mm minimum thread length and an FDA-approved pre-mounted sealing washer. These screws are designed for sanitary applications requiring secure, cleanable fastening.

Frequently Asked Questions

What are JW WINCO hygienic hex head screws used for?

JW WINCO hygienic hex head screws are used in sanitary food, beverage, pharmaceutical, and dairy processing equipment where cleanable, corrosion-resistant fastening is required. The Grade 316L stainless steel and FDA-approved pre-mounted sealing washer prevent bacterial growth and withstand frequent washdowns.

What are the specifications of JW WINCO 1581-M4-25-MT-H screws?

These are M4 partially threaded hex head screws in Grade 316L stainless steel with a 14 mm minimum thread length. They include an FDA-approved pre-mounted sealing washer for hygienic sealing. The low-profile head design reduces crevices for easier cleaning in sanitary environments.

Where to buy JW WINCO hygienic hex head screws worldwide?

3G Electric supplies JW WINCO hygienic hex head screws worldwide. As a global industrial sourcing partner, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on the MPN 1581-M4-25-MT-H.

How to install JW WINCO hygienic hex head screws with sealing washer?

Install using a standard hex driver, tightening to the torque recommended for M4 Grade 316L fasteners in your application. The pre-mounted FDA-approved sealing washer compresses to form a hygienic seal. Avoid over-tightening to prevent washer damage. Clean surfaces before installation.

Used in

Common applications for JW WINCO
Machinery assembly — JW WINCO self-locking bearing locknuts (e.g., 1804.1-M50X1.5) for securing bearings on shafts in gearboxes and conveyors.
Fixture building — JW WINCO horizontal U-latch toggle clamps (e.g., 851.3-700-T6) for quick clamping in welding jigs and assembly fixtures.
Material handling — JW WINCO quick-release hoist rings (e.g., 1135-M12-17-ST) for lifting heavy components in manufacturing cells.
Shaft positioning — JW WINCO one-piece shaft collars (e.g., 5WG46/A) for retaining bearings or acting as stops on linear motion systems.
Linkage systems — JW WINCO stainless steel clevis rod ends (e.g., 8NXBIS) for connecting pneumatic cylinders or actuators in automated equipment.
Clamping arm extension — JW WINCO rigid clamping arm extenders (e.g., 801.1-85-16-ST) for increasing reach on toggle clamps in custom fixtures.

JW WINCO Products

3G Electric supplies JW WINCO low-profile hygienic hex head screws with sealing washer. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

More from JW WINCO

View all JW WINCO parts
Hygienic Hex Head Screws: Stainless Steel, Partially Threaded, M6, 18 mm Min Thread Lg, Grade 316L (MPN 1581-M6-40-MT-E). Key specifications — Brand: JW WINCO; Washer Type: FDA-Approved Pre-Mounted Sealing.
JW WINCO
Hygienic Hex Head Screws: Stainless Steel, Partially Threaded, M6, 18 mm Min Thread Lg, Grade 316L (MPN 1581-M6-40-MT-E). Key specifications — Brand: JW WINCO; Washer Type: FDA-Approved Pre-Mounted Sealing.
Hygienic Hex Head Screws: Stainless Steel, Partially Threaded, M10, 26 mm Min Thread Lg, Grade 316L (MPN 1581-M10-60-PL-H). Key specifications — Brand: JW WINCO; Washer Type: FDA-Approved Pre-Mounted Sealing.
JW WINCO
Hygienic Hex Head Screws: Stainless Steel, Partially Threaded, M10, 26 mm Min Thread Lg, Grade 316L (MPN 1581-M10-60-PL-H). Key specifications — Brand: JW WINCO; Washer Type: FDA-Approved Pre-Mounted Sealing.
Hygienic Hex Head Screws: Stainless Steel, Partially Threaded, M8, 22 mm Min Thread Lg, Grade 316L (MPN 1581-M8-40-PL-H). Key specifications — Brand: JW WINCO; Washer Type: FDA-Approved Pre-Mounted Sealing.
JW WINCO
Hygienic Hex Head Screws: Stainless Steel, Partially Threaded, M8, 22 mm Min Thread Lg, Grade 316L (MPN 1581-M8-40-PL-H). Key specifications — Brand: JW WINCO; Washer Type: FDA-Approved Pre-Mounted Sealing.
Hygienic Hex Head Screws: Stainless Steel, Partially Threaded, M5, 16 mm Min Thread Lg, Grade 316L (MPN 1581-M5-20-MT-E). Key specifications — Brand: JW WINCO; Washer Type: FDA-Approved Pre-Mounted Sealing.
JW WINCO
Hygienic Hex Head Screws: Stainless Steel, Partially Threaded, M5, 16 mm Min Thread Lg, Grade 316L (MPN 1581-M5-20-MT-E). Key specifications — Brand: JW WINCO; Washer Type: FDA-Approved Pre-Mounted Sealing.
Hygienic Hex Head Screws: Stainless Steel, Fully Threaded, M16, 30 mm Fastener Lg, Grade 316L (MPN 1581-M16-30-PL-E). Key specifications — Brand: JW WINCO; Washer Type: FDA-Approved Pre-Mounted Sealing.
JW WINCO
Hygienic Hex Head Screws: Stainless Steel, Fully Threaded, M16, 30 mm Fastener Lg, Grade 316L (MPN 1581-M16-30-PL-E). Key specifications — Brand: JW WINCO; Washer Type: FDA-Approved Pre-Mounted Sealing.
Hygienic Hex Head Screws: Stainless Steel, Partially Threaded, M10, 26 mm Min Thread Lg, Grade 316L (MPN 1581-M10-40-PL-E). Key specifications — Brand: JW WINCO; Washer Type: FDA-Approved Pre-Mounted Sealing.
JW WINCO
Hygienic Hex Head Screws: Stainless Steel, Partially Threaded, M10, 26 mm Min Thread Lg, Grade 316L (MPN 1581-M10-40-PL-E). Key specifications — Brand: JW WINCO; Washer Type: FDA-Approved Pre-Mounted Sealing.
Hygienic Hex Head Screws: Stainless Steel, Partially Threaded, M4, 14 mm Min Thread Lg, Grade 316L (MPN 1581-M4-25-PL-H). Key specifications — Brand: JW WINCO; Washer Type: FDA-Approved Pre-Mounted Sealing.
JW WINCO
Hygienic Hex Head Screws: Stainless Steel, Partially Threaded, M4, 14 mm Min Thread Lg, Grade 316L (MPN 1581-M4-25-PL-H). Key specifications — Brand: JW WINCO; Washer Type: FDA-Approved Pre-Mounted Sealing.
Hygienic Hex Head Screws: Stainless Steel, Fully Threaded, M10, 25 mm Fastener Lg, Grade 316L (MPN 1581-M10-25-PL-H). Key specifications — Brand: JW WINCO; Washer Type: FDA-Approved Pre-Mounted Sealing.
JW WINCO
Hygienic Hex Head Screws: Stainless Steel, Fully Threaded, M10, 25 mm Fastener Lg, Grade 316L (MPN 1581-M10-25-PL-H). Key specifications — Brand: JW WINCO; Washer Type: FDA-Approved Pre-Mounted Sealing.