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Standard
AllDIN 912DIN 933DIN 7991ISO 7380DIN 916YB 818YJT 13001YB 819DIN 976-1YJT 13002DIN 913GB 901JISB 1122TDIN 6334GB 818DIN 914GB 12618DIN 967GB 873GB 9074.8DIN 985GB 109
Material
All304 Stainless Steel40Cr Alloy Steel316 Stainless SteelPA66 Nylon10B21 Carbon SteelQ235 Carbon Steel1010A Carbon SteelCarbon SteelH58 BrassABS Plastic1010 Carbon Steel1022 Carbon Steel1022A Carbon Steel65Mn Spring SteelQ195 Carbon SteelSCM435 Alloy SteelH62 BrassAluminium Alloy303 Stainless SteelT2 CopperUnspecified35K Carbon SteelHSS High Speed SteelA3 Carbon Steel5052/7A03 AluminiumA00 AluminiumML08AL Carbon Steel201 Stainless SteelH59 Brass410 Stainless Steel
Grade
AllA2-70Grade 4.8Grade 12.9A4-70PA66Grade 10.9Grade A45HGrade 4Grade 8.8A4-80210-280HV30AL4Case Hardened 450 HV0.3430-510HV460-560HV30420-545HV30Grade 8Grade 14.9A2-5064 HRCA2-035140-170 HV200 HV304A4-035310SD6H59Grade 5.8
Surface Finish
AllPlainBlack Oxide (Hardened)Self ColourNickel PlatedBlackBlack OxideWhiteBlue-White Zinc PlatedWhite Zinc PlatedBlack Zinc PlatedColour Zinc PlatedAnodisedElectrophoretic BlackZinc PlatedBlack Nickel PlatedCopper PlatedClearRedFully Ground BlueYellowElectroplatedDacrometBrushedHardened Self ColourSandblastedFrosted Anti-SlipBlue Zinc PlatedBrass PlatedStainless Black Oxide
Diameter
All0#1/85/323/161/45/163/87/161/25/8M0.911/16-3/81/2-131/4-201/4-28G 1"G 1-1/2G 1-1/4G 1/2G 1/4G 1/8
Length
All1 mm2 mm2.5 mm3 mm3.5 mm4 mm5 mm5.4 mm5.5 mm6 mm6.4 mm6.5 mm7 mm8 mm9 mm9.5 mm10 mm11 mm12 mm13 mm14 mm15 mm
Thread
AllFull ThreadCoarse ThreadPart ThreadFine ThreadLeft Hand ThreadUNC / UNF ThreadMetricImperial (US)Aluminium / IronAll SteelBSW / BSF ThreadSerratedStandard Length, Flat HeadHalf SteelRight + Left Hand ThreadStraightMedium DutyFlatLong Ball EndFlat TypeTaperedFlat HeadFlat TailExtra Long Ball EndWide TypeNarrow TypeBent TypeImperial
Variant
AllKnurledStandard LengthFull ThreadDk≈8.0SerratedWeld TypeToothedDk≈6.0Dk≈7.0FlatDk≈5.0SeamlessDk≈10Self-DrillingMetricDk≈12European StandardBlue NylonBlack 304With WasherPlain ShankPurpleGoldBlackSilverGreenSingle HoleHex Bit (Metric)Without WasherDk≈11

5/16 Bolts, Screws, Nuts & Washers

2 products
Grid Price list
5/16 Bolts, Screws, Nuts & Washers

A non-metric or special bore size. Confirm the thread form and tolerance with us before you specify it into a design.

In stock now: 120 lines; covering Screws (75), Socket Head Screws (67), ANSI/ASME B18.3SH( Knurled ) (43), Bolts (31), Hex Bolts (31); priced from $0.0357 per piece. Every line is sold by the piece — one piece is a valid order.

Related values on the same axis

1/2 1/4 2# 10# 3/16 3/8 4# 5/8 6# 8#

Product families covered

Screws 75 Socket Head Screws 67 ANSI/ASME B18.3SH( Knurled ) 43 Bolts 31 Hex Bolts 31 ANSI American Hex Head 31 Imperial Countersunk Hex Socket 10 DIN916 8 Tools 8 Set Screws 8 ANSI American Round Head Hex Socket 7 Imperial Round Head Hex Socket 7

Frequently asked

How much do 5/16 fasteners cost?
Prices in our catalogue for 5/16 run from $0.0357 to $31.4104 per piece, depending on diameter, length and material. There is no minimum order.
Is there a minimum order quantity for 5/16?
No. Every line is sold by the piece, so you can order a single piece to check the fit and the finish before committing to a production quantity. Your order total is confirmed in the cart, before payment.
What do you stock in 5/16?
5/16 Bolts, Screws, Nuts & Washers currently covers 120 lines across Screws, Socket Head Screws, ANSI/ASME B18.3SH( Knurled ), Bolts, Hex Bolts, ANSI American Hex Head. The full list of sizes, materials and finishes on this page is live — use the filters at the top to narrow it down.
How quickly do you ship 5/16 fasteners, and can you send them to the EU or Russia?
In-stock lines leave our Foshan warehouse within 24–48 hours. We ship worldwide, including the EU and Russia. For the EU we are appointing a responsible person under Regulation (EU) 2023/988 (GPSR); for EAEU orders the conformity documents are handled with the importing party, who is the applicant of record. We can supply an EN 10204 3.1 mill test certificate, a full technical specification and a packing list with weights on request.
Product Diameter × Length Material Stock Unit price
Machine Tap (BSW) 5/16 HSS High Speed Steel Machine Tap (BSW) 5/16 HSS High Speed Steel
Fully Ground
 5/16 HSS High Speed Steel In stock Log in to see prices Log in to order
Machine Tap (UN) 5/16 HSS High Speed Steel Machine Tap (UN) 5/16 HSS High Speed Steel
Fully Ground
 5/16 HSS High Speed Steel In stock Log in to see prices Log in to order
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