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Common Questions

Maybe the single most important piece of information about your order is "when will I receive it?" It doesn't matter if you are the DIY-selfer trying to plan your weekend around a backyard project or a procurement professional trying to meet a critical business deadline, we understand how important something as simple as an arrival date can be. That's why we've invested significant time, money and resources into being able to accurately calculate this date for you BEFORE you place an order. As you select your shipping method, a delivery date is calculated taking into account a variety of variables so that you can make an informed decision before you buy. This same delivery date is included on the order confirmation email that is sent the moment your order is placed. We know how important your time is, both personal and professional. Let us be your secret weapon when it comes to sourcing premium fastener products that show up on-time, when you need them most. 👍

VIP Rewards is our way of saying "thank you" and offering discounts to YOU, our VIP customer! The program is simple. Spend $1, earn 1 point. Simply registering earns you 200 points! Spend your points on discounts you claim in your shopping cart. It's that easy.  If you haven't already, register for VIP Rewards today!  

We sure can! Just FYI, shipments weighing in excess of 250 LBS and freight shipments to residential shipping addresses may require additional shipping and handling costs. In the event that additional shipping and handling is required, we'll contact you immediately to make arrangements.

FMW Fasteners DOES ship to Alaska, Hawaii, U.S. Territories and APO/FPO addresses. Due to the additional fees and in some cases challenges associated with shipping to these special destinations we may ask you to cover a portion of the shipping and handling costs. When shipping to these locations please keep in mind that delivery time will take longer and delivery to APO and FPO addresses may take an additional 7 to 14 days.

Unfortunately in the world of shipping there can be discrepancies in what the shipper's tracking information indicates and reality. Just know this...we will make sure you're taken care of in the event of a shipping issue. If your tracking information indicates that your package has been delivered but you can't find it, do the following: Verify the shipping address on your order Look for any type of notice of attempted delivery Check around the delivery location Look to see if someone else accepted the delivery Wait 36 hours. Packages will often show as "delivered" while still in transit, particularly in rural areas Contact Us

A shipping carrier may deem a package "undeliverable" for one of the following reasons: Incorrect Address - If the address is incorrect or outdated, the package is typically returned to us by the carrier or the unintended recipient. Address Format - If the address was entered in an incorrect format, it will be undeliverable. APO or FPO Addresses - If the address is entered as an international address or without the correct US APO/FPO zip code, it will be undeliverable.

90% of our orders ship direct from our warehouse in Houston, Texas. In situations where we can reduce shipping time to based on your proximity to one of our manufacturer's warehouses, we may choose to drop-ship items directly to you. We are QUITE good at optimizing the sourcing and logistics behind each and every order we handle. For our customers who do procurement for a living, this is a huge value-add in working with us. Place your order. We handle the rest. 

No quotes here. There are many fastener suppliers out there that would be more than happy to put together a quote for you. That's just not us. Our goal is to offer you a huge selection of fastener products at competitive prices with free shipping. To that end, we don't respond to requests for quotations. Our website is always current with the products we sell, pricing and we provide a delivery date in your cart BEFORE you place your order.

Product Questions

All of our item images are accurate representative images of the product category, however, due to the limitless variations in thread patterns, finishes, and other variables that exist with fasteners, they are representative images only. Variations particularly in thread pattern are driven by the length of product. For specific details on any item, please refer to the SPECS tab on the product page.  

FMW Fasteners can provide MTRs on all domestic bolting material as well as A325 and L9 structural bolting. To request certifications, just follow these steps: Click on this link. Provide us with your sales order number (SH****) and submit your request. We will review your original order and process your request! Please allow 48 hours for email delivery.

We do offer domestic manufactured A325, Grade 5, Grade 8 and L9 bolting products. These products will specifically indicate "Domestic USA" in their product descriptions. Unless specifically indicated as being domestic, our inventory is made up of products manufactured internationally in ISO 9001:2008 certified facilities.  

Technical Information

Standard Thread Length for Bolts | Inch / Imperial Bolt Diameter 6" and Shorter Longer Than 6" A325 Thread Length 1/4 0.75 1   5/16 0.875 1.125   3/8 1 1.25   7/16 1.125 1.375   1/2 1.25 1.5 1 9/16 1.375 1.625   5/8 1.5 1.75 1.25 3/4 1.75 2 1.375 7/8 2 2.25 1.5 1 2.25 2.5 1.75 1 1/8 2.5 2.75 2 1 1/4 2.75 3 2 1 3/8 3 3.25 2.25 1 1/2 3.25 3.5 2.25 1 3/4 3.75 4   2 4.25 4.5   2 1/4 4.75 5   2 1/2 5.25 5.5   2 3/4 5.75 6   3 6.25 6.5   3 1/4 6.75 7   3 1/2 7.25 7.5   3 3/4 7.75 8   4 8.25 8.5   *All thread lengths are indicted in inches Standard Thread Length for Bolts | Metric Bolt Diameter 125mm and Shorter Longer Than 125mm M3 12 M4 14 M5 16 22 M6 18 24 M7 20 26 M8 22 28 M10 26 32 M12 30 36 M14 34 40 M16 38 44 M18 42 48 M20 46 52 *All thread lengths are indicated in millimeters

Pilot Hole and Shank Clearance Hole Boring Recommendations for Wood Screws ScrewDiameter Bit or Drill Sizes No of Auger Bit To Counterbore for striking head For Shank Clearance Holes For Pilot Holes Hard Woods Soft Woods Twist BitNearest Size in fractions of an inch Drill Gauge No or letter to be used for maximum holding power Twist BitNearest Size in fractions of an inch DrillGauge No to be used for maximum holding power Twist BitNearest Size in fractionsof an inch DrillGauge No to be used for maximum holding power 0 1/16 52 1/32 66 1/54 75 - 1 5/64 47 - 57 1/32 71 - 2 3/32 42 - 54 1/32 65 3 3 7/54 37 1/16 53 3/64 58 4 4 7/54 32 1/16 51 3/64 55 4 5 1/8 30 5/64 47 1/16 53 4 6 9/64 27 - 44 1/16 52 5 7 5/32 22 - 39 1/16 51 5 8 11/64 18 7/64 35 5/64 48 6 9 3/16 14 7/64 33 5/64 45 6 10 3/16 10 1/8 31 3/32 43 6 11 13/64 4 - 29 3/32 40 7 12 7/32 2 - 25 7/64 38 7 14 1/4 0 3/16 14 7/64 32 8 16 17/64 1 - 10 9/64 29 9 18 19/64 N 13/64 6 9/64 26 10 20 21/64 P 7/32 3 11/64 19 11 24 3/8 V 1/4 D 3/16 15 12   Self Tapping Screws - Hole Size Recommendations ScrewDiameter Thickness of Metal Pierced Hole Drilled or clean Punched Hole ScrewDiameter Thickness of metal Pierced Hole Drilled or clean Punched Hole USS Gauge No Equivalent Hole Dia Hole Dia Drill Size USS Gauge No Equivalent Hole Dia Hole Dia Drill Size 4.112 282624 2220 .0156.0188.0250 .0313.0375 .086.086.093.098 .100 .0860.0860.0935 .0935.0980 4444424240 8.165 2624222018 .0188.0250.0313 .0375.0500 .137.137.137.137 - .1130.1130 .1160.1200.1280 333332 3130 6.138 282624 2220 .0156.0188.0250 .0313.0375 .111.111.111.111 .111 .0995.0995.0995 .1015.1065 3939393836 10.191 2624222018 .0188.0250.0313 .0375.0500 .158.158.158.158 .158 .1285.1285.1285 .1360.1495 30303029 25 7.115 2826242220 18 .0156.0188.0250 .0313.0345.0500 .121.121.121.121 .121- .1040.1040.1100 .1130.1160.1200 3737353332 31 12.218 24222018 .0250.0313.0375 .0500 -.185.185.185 .1470.1495.1520 .1570 26252422             14.251 24222018 .0250.0313.0375 .0500 -.212.212.212 .1800.1890.1910.1960   1512119

Phillips Philllips Point # Sheet Metal Screws Wood Screws Machine Screws Flat, Round, Oval Stove Binding Flat, Oval Round Flat, Oval Binding Round, Fillister Truss, Brazier Button 0 0, 1 0, 1 0, 1 0, 1 0, 1 0, 1 1 2, 3, 4 2, 3, 4 2, 3, 4 2, 3, 4 2, 3, 4 2, 3, 4, 5 2 5, 6, 7, 8, 10 5, 6, 7, 8, 9 5, 6, 7, 8, 9, 10 5, 6, 8, 10 5, 6, 8, 10 6, 8, 10 3 12, 14 10, 12, 14, 16 12, 14, 16 12, 1/4" 12, 1/4", 5/16" 12, 1/4" Slotted Slotted Point # Screw Size Slot Screw Width Thread Dia. Maximum Head Diameter Min Max Flat or Oval Head Round Head Fillister Head Binding Head Pan Head Truss Head 4-5 3 .027 .035 .099 .199 .187 .161 .208 .193 .226 4-5 4 .031 .039 .112 .225 .211 .183 .235 .219 .257 6-8 5 .035 .043 .125 .252 .236 .205 .263 .245 .289 8-10 6 .039 .048 .138 .279 .260 .226 .290 .270 .321 10-12 8 .045 .054 .164 .332 .309 .270 .344 .322 .384 Square Slotted Point # Tapping Crews Wood Screws Machine Screws 0 3, 4 3, 4 3, 4 1 5, 6, 7 5, 6, 7 5, 6 2 8, 10 8, 9, 10 8, 10 3 12, 14 12, 14 12, 14 6-Lobe / Star / Torx® Screw Size Thread Dia. Internal Torx Washer Head Pan Head Flat Head Hex Head Truss Head Fillister Head Oval Head Socket Head Cap Socket Set Screw 2 .086 T7 T7 T6 ---- ---- ---- ---- ---- ---- 3 .099 T8 T8 T7 ---- ---- ---- ---- ---- ---- 4 .112 T9 T9 T8 T9 ---- T9 ---- T10 T6 5 .125 T10 T10 T9 T10 ---- T10 T10 T10 T7 6 .138 T15 T15 T10 T15 T10 T15 T15 T15 T7 8 .164 T20 T20 T15 T20 T15 T20 T20 T25 T8 10 .190 T25 T25 T20 T25 T20 T25 T25 T27 T10 12 .216 T27 T27 T25 T27 T25 T27 T27 T27 T10 1/4" .250 T30 T30 T27 T30 T27 T30 T30 T30 T20 5/16" .312 ---- ---- T40 T40 T40 T340 T40 T45 T27 3/8" .375 ---- T45 T40 T45 T45 T45 T45 T50 T30 7/16" .437 ---- T50 T50 ---- T45 T50 T50 T55 T40 1/2" .500 ---- T55 T50 ---- T50 T55 T50 T55 T45  *Please note, the sizes indicated DO NOT include tamper resistant insert bits. Please refer to the item description of any tamper resistant product we sell for the corresponding bit size to use.

Finished Hex Nuts Bolt Dimensions Diameter Inches Across Flats Thickness 1/4 7/16 7/32 5/16 1/2 17/64 3/8 9/16 21/64 7/16 11/16 3/8 1/2 3/4 7/16 9/16 7/8 31/64 5/8 15/16 35/64 3/4 1 /18 41/64 7/8 1-5/16 3/4 1 1-1/2 55/64 1-1/8 1-11/16 31/32 1-1/4 1-7/8 1-1/16 1-3/8 2-1/16 1-11/64 1-1/2 2-1/4 1-9/32 1-5/8 2-7/16 1-25/64 1-3/4 2-5/8 1-1/2 1-7/8 2-15/16 1-27/32 2 3 1-23/32 2-1/4 3-3/8 1-59/64 2-1/2 3-3/4 2-9/64 2-3/4 4-1/8 2-23/64 3 4-1/2 2-37/64 3-1/4     3-1/2     3-3/4     4       Heavy Hex Nuts Bolt Dimensions Diameter Inches Across Flats Thickness 1/4 1/2 15/64 5/16 9/16 19/64 3/8 11/16 23/64 7/16 3/4 27/64 1/2 7/8 31/64 9/16 15/16 35/64 5/8 1-1/16 39/64 3/4 1-1/4 47/64 7/8 1-7/16 55/64 1 1-5/8 63/64 1-1/8 1-13/16 1-7/64 1-1/4 2 1-7/32 1-3/8 2-3/16 1-11/32 1-1/2 2-3/8 1-15/32 1-5/8 2-9/16 1-19/32 1-3/4 2-3/4 1-23/32 1-7/8 2-15/16 1-27/32 2 3-1/8 1-31/32 2-1/4 3-1/2 2-13/64 2-1/2 3-7/8 2-29/64 2-3/4 4-1/4 2-45/64 3 4-5/8 2-61/64 3-1/4 5 3-3/16 3-1/2 5-3/8 3-7/16 3-3/4 5-3/4 3-11/16 4 6-1/8 3-15/16

USS Washers Bolt Diameter Outside Diameter Hole Diameter Dimensions Thickness Gauge Inches * Approx. Number in 100 lbs. Approx. 1000 Pcs in lbs. 1/8 3/16 1/4 5/16 7/16 9/16 3/4 7/8 3/16 1/4 5/16 3/8 18 18 16 14 3/64 3/64 1/16 5/64 55400 29400 16200 9600 1.8 3.4 6.2 10.4 3/8 7/16 1/2 9/16 1 1-1/4 1-3/8 1-1/2 7/16 1/2 9/16 5/8 14 13 12 12 5/64 3/32 7/64 7/64 7460 3800 2740 2300 13.4 26.2 36.6 43.3 5/8 5/8 3/4 3/4 1-3/4 1-3/4 2 2 11/16 3/4 13/16 7/8 10 10 10 9 9/64 9/64 9/64 5/32 1290 1340 1000 930 77.5 74.8 100.0 107.6 7/8 7/8 1 S 1 L 2-1/4 2-1/4 2-1/2 2-1/2 15/16 1 1-1/16 1-1/8 9 9 9 9 5/32 5/32 5/32 5/32 720 740 580 600 139.2 135.2 170.4 165.9 1-1/8 S 1-1/8 L 1-1/4 S 1-1/4 L 2-3/4 2-3/4 2-3/4 3 1-3/16 1-1/4 1-5/16 1-3/8 9 9 9 9 5/32 5/32 5/32 5/32 490 500 520 420 204.7 199.7 194.3 236.6 1-3/8 1-1/2 S 1-1/2 L 1-5/8 3-1/4 3-1/4 3-1/2 3-1/4 1-1/2 1-9/16 1-5/8 1-3/4 9 8 8 8 5/32 11/64 11/64 11/64 360 340 280 250 276.6 297.2 351.6 402.5 1-3/4 S 1-3/4 L 2 S 2 L 3-3/4 4 4-1/4 4-1/2 1-13/16 1-7/8 2-1/16 2-1/8 7 7 7 7 3/16 3/16 3/16 3/16 230 200 180 160 430.1 498.3 551.1 628.0 SAE Washers 3/16 1/4 5/16 3/8 1/2 5/8 11/16 13/16 7/32 9/32 11/32 13/32 16 16 16 16 1/16 1/16 1/16 1/16 37000 24400 21200 15140 2.7 4.1 4.7 6.6 7/16 1/2 9/16 5/8 59/64 1-1/16 1-3/16 1-5/16 15/32 17/32 19/32 21/32 16 13 13 13 1/16 3/32 3/32 3/32 11360 5900 4740 3880 8.8 16.9 21.1 25.8 3/4 7/8 1 1-1/2 1-3/4 2 13/16 15/16 1-1/16 11 11 11 1/8 1/8 1/8 2360 1720 1310 42.3 58.1 76.4 USS Washers Hot Dip Galvanized 1/4 5/16 3/8 7/16 1/2 3/4 7/8 1 1-1/4 1-3/8 5/16 3/8 7/16 1/2 9/16 16 14 14 13 12 1/16 5/64 5/64 3/32 7/64 15700 9100 6500 3350 2400 9/16 5/8 3/4 7/8 1-1/2 1-3/4 2 2-1/4 5/8 11/16 13/16 15/16 12 10 10 9 7/64 9/64 9/64 5/32 2100 1200 950 660 1 S 1-1/8 L 1-1/4 S 2-1/2 2-3/4 2-3/4 1-1/16 1-1/4 1-5/16 9 9 9 5/32 5/32 5/32 530 460 480 * Quantity per pound may vary ± 15% based on I.F.I. allowable thickness tolerances.

ASTM and SAE Specifications, Proof Loads, Tensile Strengths Grade Marking Specification Material Bolt and Screw Size (Inches) Proof Load psi Tensile Strength min. psi SAE Grade 1         ASTM A307 Low Carbon Steel 1/4 thru 1-1/2 1/4 thru 1-1/2 Over 1-1/2 thru 4 33000 33000 60000 60000 55000 SAE Grade 2 Low Carbon Steel 1/4 thru 3/4 Over 3/4 thru 1-1/2 55000 33000 74000 60000 SAE Grade 3 Med. Carbon Steel Cold Worked 1/4 thru 1/2 Over 1/2 thru 5/8 85000 80000 110000 100000 SAE Grade 5 Med. Carbon Steel Quenched and Tempered 1/4 thru 1 Over 1 thru 1-1/2 85000 74000 120000 105000 ASTM  A449   1/4 thru 1 Over 1 thru 1-1/2 Over 1-1/2 thru 3 85000 74000 55000 120000 105000 90000 ASTM A325 Med. Carbon Steel Quenched and Tempered 1/2, 5/8, 3/4 7/8, 1 1-1/8 thru 1-1/2 85000 78000 74000 120000 115000 105000 ASTM A354 Grade BB Low Alloy Steel Quenched and Tempered 1/4 thru 2-1/2 Over 2-1/2 thru 4 80000 75000 105000 100000 ASTM A354 Grade BC Low Alloy Steel Quenched and Tempered 1/4 thru 2-1/2 Over 2-1/2 thru 4 105000 75000 125000 100000 SAE Grade 5.1 Low or Med Carbon Steel Quenched and Tempered with Assembled Lock Washer Up to 3/8 incl. 85000 120000 SAE Grade 7 Med. Carbon Alloy Steel Quenched and Tempered. Roll Threaded after Heat Treated 1/4 thru 1-1/2 105000 133000 SAE Grade 8 Med. Carbon Alloy Steel, Quenched and Tempered       ASTM A354 Grade BD Alloy Steel Quenched and Tempered 1/4 thru 1-1/2 120000 150000 ASTM A490 Alloy Steel, Quenched and Tempered 1/2 thru 2-1/2 Over 2-1/2 thru 4 120000 105000 150000 140000 ASTM Specifications: A 307: Low Carbon Steel Externally and Internally Threaded Standard Fasteners A 325: High Strength Steel Bolts for Structural Steel Joints, including Suitable Nuts and Plain Hardened Washers A 449: Quenched and Tempered Steel Bolts and Studs A 354: Quenched and Tempered Alloy Steel Bolts and Studs with Suitable Nuts A 490: High Strength Alloy Steel Bolts for Structural Steel Joints, including Suitable Nuts and Plain Hardened Washers SAE Specification: J 429c: Mechanical and Quality Requirements for Threaded Fasteners

Most flat washers are shown with a single sizing option:  Diameter.  This indicates the nominal inner diameter of the washer AND the bolt diameter this washer is designed to work with. Select the same size washer diameter as the bolt diameter.  An exception would be Fender Washers. By design, these allow you to select from two size options (i.e. 1/4 x 3/4). The first indicates the nominal inner diameter. This is the bolt diameter it works with. The second indicates the outer diameter of the washer itself.

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