Hex Flat Head Machine Screws 18-8 Stainless Steel - Tamper Proof (Metric)

M3-0.50 x 10 Tamper Resistant Hex Flat Head Machine Screw 18-8 Stainless Steel - Metric (3/32)

Item Number: 3109001 Price: 1 to 999 for $0.36 / 1,000+ for $0.25

M3-0.50 x 12 Tamper Resistant Hex Flat Head Machine Screw 18-8 Stainless Steel - Metric (3/32)

Item Number: 3109002 Price: 1 to 999 for $0.37 / 1,000+ for $0.26

M3-0.50 x 16 Tamper Resistant Hex Flat Head Machine Screw 18-8 Stainless Steel - Metric (3/32)

Item Number: 3109003 Price: 1 to 999 for $0.38 / 1,000+ for $0.27

M4-0.70 x 10 Tamper Resistant Hex Flat Head Machine Screw 18-8 Stainless Steel - Metric (5/32)

Item Number: 3109004 Price: 1 to 999 for $0.37 / 1,000+ for $0.26

M4-0.70 x 12 Tamper Resistant Hex Flat Head Machine Screw 18-8 Stainless Steel - Metric (5/32)

Item Number: 3109005 Price: 1 to 999 for $0.50 / 1,000+ for $0.35

M4-0.70 x 16 Tamper Resistant Hex Flat Head Machine Screw 18-8 Stainless Steel - Metric (5/32)

Item Number: 3109006 Price: 1 to 999 for $0.53 / 1,000+ for $0.37

M4-0.70 x 20 Tamper Resistant Hex Flat Head Machine Screw 18-8 Stainless Steel - Metric (5/32)

Item Number: 3109007 Price: 1 to 999 for $0.56 / 1,000+ for $0.39

M4-0.70 x 25 Tamper Resistant Hex Flat Head Machine Screw 18-8 Stainless Steel - Metric (5/32)

Item Number: 3109008 Price: 1 to 999 for $0.62 / 1,000+ for $0.44

M4-0.70 x 30 Tamper Resistant Hex Flat Head Machine Screw 18-8 Stainless Steel - Metric (5/32)

Item Number: 3109009 Price: 1 to 999 for $0.68 / 1,000+ for $0.48

M4-0.70 x 40 Tamper Resistant Hex Flat Head Machine Screw 18-8 Stainless Steel - Metric (5/32)

Item Number: 3109010 Price: 1 to 999 for $0.71 / 1,000+ for $0.50

M5-0.80 x 12 Tamper Resistant Hex Flat Head Machine Screw 18-8 Stainless Steel - Metric (5/32)

Item Number: 3109011 Price: 1 to 999 for $0.56 / 1,000+ for $0.40

M5-0.80 x 16 Tamper Resistant Hex Flat Head Machine Screw 18-8 Stainless Steel - Metric (5/32)

Item Number: 3109012 Price: 1 to 999 for $0.60 / 1,000+ for $0.42

M5-0.80 x 20 Tamper Resistant Hex Flat Head Machine Screw 18-8 Stainless Steel - Metric (5/32)

Item Number: 3109013 Price: 1 to 999 for $0.66 / 1,000+ for $0.46

M5-0.80 x 25 Tamper Resistant Hex Flat Head Machine Screw 18-8 Stainless Steel - Metric (5/32)

Item Number: 3109014 Price: 1 to 999 for $0.67 / 1,000+ for $0.47

M5-0.80 x 30 Tamper Resistant Hex Flat Head Machine Screw 18-8 Stainless Steel - Metric (5/32)

Item Number: 3109015 Price: 1 to 999 for $0.75 / 1,000+ for $0.52

M5-0.80 x 40 Tamper Resistant Hex Flat Head Machine Screw 18-8 Stainless Steel - Metric (5/32)

Item Number: 3109016 Price: 1 to 999 for $0.82 / 1,000+ for $0.57

M5-0.80 x 50 Tamper Resistant Hex Flat Head Machine Screw 18-8 Stainless Steel - Metric (5/32)

Item Number: 3109017 Price: 1 to 999 for $0.93 / 1,000+ for $0.65

M5-0.80 x 60 Tamper Resistant Hex Flat Head Machine Screw 18-8 Stainless Steel - Metric (5/32)

Item Number: 3109018 Price: 1 to 999 for $1.13 / 1,000+ for $0.79

M6-1.00 x 12 Tamper Resistant Hex Flat Head Machine Screw 18-8 Stainless Steel - Metric (5/32)

Item Number: 3109019 Price: 1 to 999 for $0.78 / 1,000+ for $0.55

M6-1.00 x 16 Tamper Resistant Hex Flat Head Machine Screw 18-8 Stainless Steel - Metric (5/32)

Item Number: 3109020 Price: 1 to 999 for $0.84 / 1,000+ for $0.59

M6-1.00 x 20 Tamper Resistant Hex Flat Head Machine Screw 18-8 Stainless Steel - Metric (5/32)

Item Number: 3109021 Price: 1 to 999 for $0.90 / 1,000+ for $0.63

M6-1.00 x 25 Tamper Resistant Hex Flat Head Machine Screw 18-8 Stainless Steel - Metric (5/32)

Item Number: 3109022 Price: 1 to 999 for $0.98 / 1,000+ for $0.69

M6-1.00 x 30 Tamper Resistant Hex Flat Head Machine Screw 18-8 Stainless Steel - Metric (5/32)

Item Number: 3109023 Price: 1 to 999 for $1.02 / 1,000+ for $0.72

M6-1.00 x 40 Tamper Resistant Hex Flat Head Machine Screw 18-8 Stainless Steel - Metric (5/32)

Item Number: 3109024 Price: 1 to 999 for $1.13 / 1,000+ for $0.79

M6-1.00 x 50 Tamper Resistant Hex Flat Head Machine Screw 18-8 Stainless Steel - Metric (5/32)

Item Number: 3109025 Price: 1 to 999 for $1.18 / 1,000+ for $0.83

M6-1.00 x 60 Tamper Resistant Hex Flat Head Machine Screw 18-8 Stainless Steel - Metric (5/32)

Item Number: 3109026 Price: 1 to 999 for $1.47 / 1,000+ for $1.03

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Let customers speak for us

from 4567 reviews

5/8-18

Quick ship and great price

Eric Barnhill

5/8-18 x 1 1/2 Grade 8 Hex Cap Screw Yellow Zinc Plated

04/24/2025

Hardened Bolts

Very happy with the packaging, shipping & product. Thank you

Steven Wetterer

3/8-16 x 4 Flat Socket Cap Screw Alloy

04/21/2025

Great

Thomas Hare

3/8-16 x 2 1/2 Tamper Resistant Torx Button Head Socket Machine Screw 18-8 Stainless Steel (T-45)

04/21/2025

Fast and efficient

I ordered and got my anchors faster than I expected

JOSE R DELAFUENTE

(AF6™) 1/4 ALLIGATOR® Anchor w/ Flange Nylon (100)

04/19/2025

5/16-24 x 1/4 Socket Set Screw Cup Point 18-8 (A2) Stainless Steel

Bob Cathaway

5/16-24 x 1/4 Socket Set Screw Cup Point 18-8 (A2) Stainless Steel

04/16/2025

fasteners order

nice parts good service

jacques cardin

5/16-24 x 1 1/2 Socket Cap Screw Zinc

04/16/2025

Just what my husband needed to complete his project!

Nancy Brisson

12-28 x 1 1/4 Socket Cap Screw Alloy

04/15/2025

Quick and simple

Exactly what I needed, quickly and simply. Excellent experience.

Ryan Dietrich

M8-1.25 x 55 Socket Cap Screw 12.9 Alloy Plain DIN 912

04/14/2025

#10 x 1 Tamper Resistant Spanner Insert Bit (1/4 Hex)

Ruben Jaramillo

#10 x 1 Tamper Resistant Spanner Insert Bit (1/4 Hex)

04/10/2025

Great service!

Great selection and fast delivery!

John Brownell

8-36 x 1 1/2 Socket Cap Screw Alloy

04/07/2025

They fit perfectly,I’m very happy!

Norman Lesage

M10-1.50 x 90 Socket Cap Screw DIN 912 18-8 (A2) Stainless Steel

04/06/2025

8-32 Cap Nut Nickel

Daniel McMullin

8-32 Cap Nut Nickel

04/06/2025

Hard to find. Found

Quality product. Recommend

Delbert Enloe

3/8-16 x 3 Grade 5 Carriage Bolt Zinc Plated

04/04/2025

7/8 lock nuts

Everything was packed right and on time

Troy Redwine

7/8-9 Nylon Insert Locknut Zinc Plated

03/31/2025

Yeah, the email you sent me wouldn't allow input

Had to do the review loading the email in my Chrome browser

I appreciate buying small Machine Screws via FMW Fasteners

I would suggest you put back the chart of specifications like the height of nuts and washers and fender washers cuz we need that spec to make sure the Machine Screw would be long enough for the fastening across our material (in my case, usually a wooden board).

Thanks. Your delivery is quick, and always well tagged.

John DeVilbiss

M5-0.80 x 30 Tamper Resistant Torx Flat Head Machine Screw 18-8 Stainless Steel - Metric (T-25)

03/29/2025

Testimonials

★★★★★
They were swift and delivered fast! They had everything I needed.
Eddie Wilcox
Parma, OH

★★★★★
GREAT PRODUCT AND BUSINESS
Exactly what we needed and apparently FMW is not only the single source, but the best source. Easy ordering-fast shipping and great communications.
John B.
Salem, OR

★★★★★
Exactly what I needed and received in a timely manner. Thank you!
Mary Marucci
Philadelphia, PA

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Testimonials