5/16-18 Hex Cap Screws 316 Stainless Steel

5/16-18 x 1/2 Hex Cap Screw SS 316 (A4)

Item Number: 1318046 Price: 1 to 999 for $0.75 / 1,000+ for $0.34

5/16-18 x 5/8 Hex Cap Screw SS 316 (A4)

Item Number: 1318049 Price: 1 to 999 for $0.83 / 1,000+ for $0.37

5/16-18 x 3/4 Hex Cap Screw SS 316 (A4)

Item Number: 1318050 Price: 1 to 999 for $0.89 / 1,000+ for $0.40

5/16-18 x 7/8 Hex Cap Screw SS 316 (A4)

Item Number: 1318053 Price: 1 to 999 for $0.98 / 1,000+ for $0.44

5/16-18 x 1 Hex Cap Screw SS 316 (A4)

Item Number: 1318055 Price: 1 to 999 for $1.02 / 1,000+ for $0.46

5/16-18 x 1 1/8 Hex Cap Screw SS 316 (A4)

Item Number: 1318056 Price: 1 to 999 for $1.19 / 1,000+ for $0.54

5/16-18 x 1 1/4 Hex Cap Screw SS 316 (A4)

Item Number: 1318057 Price: 1 to 999 for $1.20 / 1,000+ for $0.54

5/16-18 x 1 3/8 Hex Cap Screw SS 316 (A4)

Item Number: 1318059 Price: 1 to 999 for $1.40 / 1,000+ for $0.63

5/16-18 x 1 1/2 Hex Cap Screw SS 316 (A4)

Item Number: 1318061 Price: 1 to 999 for $1.41 / 1,000+ for $0.64

5/16-18 x 1 3/4 Hex Cap Screw SS 316 (A4)

Item Number: 1318062 Price: 1 to 999 for $1.60 / 1,000+ for $0.72

5/16-18 x 2 Hex Cap Screw SS 316 (A4)

Item Number: 1318064 Price: 1 to 999 for $1.80 / 1,000+ for $0.81

5/16-18 x 2 1/4 Hex Cap Screw SS 316 (A4)

Item Number: 1318066 Price: 1 to 999 for $1.99 / 1,000+ for $0.90

5/16-18 x 2 1/2 Hex Cap Screw SS 316 (A4)

Item Number: 1318068 Price: 1 to 999 for $2.20 / 1,000+ for $0.99

5/16-18 x 2 3/4 Hex Cap Screw SS 316 (A4)

Item Number: 1318071 Price: 1 to 999 for $2.39 / 1,000+ for $1.07

5/16-18 x 3 Hex Cap Screw SS 316 (A4)

Item Number: 1318072 Price: 1 to 999 for $2.57 / 1,000+ for $1.15

5/16-18 x 3 1/4 Hex Cap Screw SS 316 (A4)

Item Number: 1318075 Price: 1 to 499 for $2.79 / 500+ for $1.25

5/16-18 x 3 1/2 Hex Cap Screw SS 316 (A4)

Item Number: 1318076 Price: 1 to 499 for $3.02 / 500+ for $1.36

5/16-18 x 3 3/4 Hex Cap Screw SS 316 (A4)

Item Number: 1318078 Price: 1 to 499 for $3.40 / 500+ for $1.53

5/16-18 x 4 Hex Cap Screw SS 316 (A4)

Item Number: 1318080 Price: 1 to 499 for $3.48 / 500+ for $1.56

5/16-18 x 4 1/2 Hex Cap Screw SS 316 (A4)

Item Number: 1318082 Price: 1 to 499 for $3.91 / 500+ for $1.76

5/16-18 x 5 Hex Cap Screw SS 316 (A4)

Item Number: 1318084 Price: 1 to 499 for $4.32 / 500+ for $1.94

5/16-18 x 5 1/2 Hex Cap Screw SS 316 (A4)

Item Number: 1318086 Price: 1 to 499 for $4.72 / 500+ for $2.12

5/16-18 x 6 Hex Cap Screw SS 316 (A4)

Item Number: 1318089 Price: 1 to 499 for $5.14 / 500+ for $2.31

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Let customers speak for us

from 4691 reviews

Great ordering experience

I had to order different types of carriage bolts for a trail bridge project. I was happy to that everything arrived just as I had ordered it. Not only the quantity but the quality of the product was great.

Kurt Buermann

3/8-16 x 11 A307 Grade A Carriage Bolt Hot Dipped Galvanized

09/12/2025

customer

great service

Mike Eppele

7/16-14 x 2 1/4 Socket Cap Screw Alloy

09/12/2025

Antonio

Great customer service and very knowledgeable professional. It is small order but very fast service delivery. Great company and have pretty of merchandise.
Thank you
Antonio

Antonio Delgado

1 SAE Flat Washer Extra Heavy/Thick Yellow Zinc Plated

09/12/2025

Good company to deal with

Was really happy with product

Gwen Haverland

10-24 x 2 Socket Cap Screw Alloy

09/09/2025

You did good.

John Tipton

#2 x 1 Tamper Resistant Phillips Insert Bit (1/4 Hex)

09/04/2025

Fast & Furious

Found what I needed Ordered and BAM! order was here. I did not even have time to wonder when I would get the order. Exactly what I ordered. It was not a big order but they seemed to put the same effort into my order as some big shot ordering tens of thousands of dollars worth of product.
I feel Impo'tant.
Thank You very much

Noel Bourgeois

1/4-20 x 2 1/2 Socket Cap Screw 18-8 (A2) Stainless Steel

08/27/2025

T25 x 1 Tamper Resistant Torx Insert Bit (1/4 Hex)

Gino SanFelice

T25 x 1 Tamper Resistant Torx Insert Bit (1/4 Hex)

08/25/2025

Great Security Bolts for my Rhino Rack!

Was looking online to replace the security bolts for my Rhino Rack. These were a perfect fit and I feel that these will last a lot longer than the ones that came with the rack. Having these in a Torx configuration gives me confidence that they won't strip.
Thank you for making a great affordable product!

John Valdivieso

M6-1.00 x 16 Tamper Resistant Torx Button Head Machine Screw 18-8 Stainless Steel - Metric (T-27)

08/23/2025

Got screwed

I had a large fence repair project and needed a lot of screws. I was shopping around and found FMW. Best price on bulk fasteners by a long shot. Delivery on 2 - 500 count boxes was under a week. Super happy.

John Tolin

10 x 4 1/2 Phillips Bugle Decking Screws Yellow Zinc Plated - Carton (500)

08/23/2025

10/24 machine bolts

These bolts worked perfect. Quick shipping on the order as well.

John Turner

10-24 x 1 Tamper Resistant Torx Button Head Socket Machine Screw Alloy (T-25)

08/22/2025

Delivered as ordered

Ronald Yanish

3/16 x 18 High Speed Aircraft Bit

08/22/2025

nuts n stuff

good selection, quick shipping...........will buy again. :)

dan norwood

7/16-14 x 1 Button Socket Cap Screw Alloy

08/19/2025

I am a new customer and had a very small order and they filled it quickly and correctly. I will bookmark tme to order again.

Aaron Cole

3/8-16 x 4 1/2 Grade 5 Carriage Bolt Zinc Plated

08/15/2025

First time

Very pleased with the results and the product. In the future you are on my list of companies where I can place an order and have it delivered.

Gregory Verklan

5/16-18 x 6 Hanger Bolt Fully Threaded Zinc Plated

08/14/2025

6-20 x 2-1/4 Strong Point® Square Drive Trim Head Self Drilling Screw Zinc Plated - Carton (3000)

Dannie Byler

6-20 x 2-1/4 Strong Point® Square Drive Trim Head Self Drilling Screw Zinc Plated - Carton (3000)

08/14/2025

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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Let customers speak for us

Testimonials