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3/8" Diameter Bed Bolt

Item #
96% of 100

Build a sturdy bed frame with these specialty bed bolts. These strong steel bolts provide exceptional structural support for your bed frame. Each bolt is 6" long overall and 3/8" in diameter. Use these bolts to attach bed rails to bed posts in a traditional manner. For a touch of elegance, purchase the optional bed bolt covers (sold separately). Also for added convenience purchase the Bed Bolt Wrench (sold separately) which fits the bed bolts snugly to avoid damaging the hardware.

(1) 3/8" Diameter Bed Bolt with Nut
(Bed Bolt Wrench and Bed Bolt Covers Sold Separately)
More Information
Brand Rockler
Weight 0.2500
Tech Spec
  • Bolts constructed of steel with black anodized finish
  • 6" overall length including head
  • 3/8" Diameter Bolt
  • 3/8"-16 threads on half the length of the bolt
  • Bolt includes associated nut
Hardware Type Bolts
4.8 / 5.0
14 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Tradtional Bed Bolt
I have built 3 beds and modified another bed using these bolts and they worked well. I bought 4 bolts from another vendor but the nut was quite larger thus requiring me to drill a deeper hole so that I could use the bolt hole decorative cover plus the nut was too large. I ended up going back to Rockler and purchasing 4 more bolts. Recommend purchasing the T-handle nut driver designed for driving these bolts.
November 23, 2019
1 month ago
Woodworking Experience:
Works as advertised
Easy, strong connection. Useful to have a ~2" forstner bit for the back side.
pocket hole for 3/8" bed bolt
pocket hole for 3/8" bed bolt
November 9, 2019
1 month ago
Woodworking Experience:
Nice hardware
Worked well. Recommend finish rail thickness of 1.25 as less requires higher skill in match up. A 3/4 forester bit to depth and chisel clearing was my method
June 19, 2019
6 months ago
Woodworking Experience:
I use the Rockler 3/8 diameter bolt on all the beds I build. The bolt is 6” long with a threaded end of 2-3/4” of that length and a square fastening nut. With careful measurement, this bolt will accommodate any 1 to 1-1/2” width bed rail
May 2, 2019
over 3 years ago
Woodworking Experience:
A must have if you’re building a bed with rails utiling tenons into mortised bed posts.
Don’t usd any other bolt! I was amazed how well these worked. The pointed bolt tip and the flatteNed corners on the square nuts makes for a tight and secure assembly of each bed rail.
November 24, 2018
1 year ago
Woodworking Experience:
Best thing for wooden bed frames
If your bed frame pieces are thick enough, this method of holding it together is unbeatable. Make a mortise in the leg and a tenon on the side rail. Drill out for the length the bolt, counterbore for the head of the bolt and chop out a slot for the nut. When you tighten the bolt against the nut, the joint between and leg and side rail is very very solid. We have these on all four corners of our kingsize bed and there has been zero wobbling and no need to retighten in over a decade. You cap the counterbore with either a cover made for that purpose or if you have a lathe, make a sort of mushroom shaped piece with a hollow stem to fit into the hole and over the head of the bolt. Ours is made from the same wood as the frame so it is inconspicuous. Leave it loose if the fit is good.
February 14, 2016
over 4 years ago
Woodworking Experience:
Absolutely top quality!
August 23, 2015
over 4 years ago
Woodworking Experience:
I designed and hand made a...
I designed and hand made a custom cherry wood queen bed which I was ready to use bed-rail clips. I read the reviews about bed bolts and spoke with a contact person who wrote a review that had experience. I then spoke with my brother-in-law who delivered furniture for a large manufacturer. I was advised to switch to bed bolts which I am so glad I listened because these are really solid connections that won't loosen up. They look professional and I would recommend them to anyone who has the patience and the skill to install them. I am definitely going to make my next bed project for myself with these bolts! Thanks Rockler for stocking them along with the wrench and coverplates!
August 25, 2010
All of these items (3/8' Dia....
All of these items (3/8' Dia. Bed Bolt, Bed Bolt Wrench, Bed Bolt Covers, Sheraton Style Antique brass, Cross Dowels and Connector Bolts) were purchased to build a bed for our youngest daughter a project that is on hold until I recover from Rotator Cuff surgery three days ago. They all are exactly what we were looking for,were well packaged are great value for the cost.
October 23, 2009
I first used the bed bolts...
I first used the bed bolts when building a massive, oak, queen-sized bed for my daughter and am currently using another set while restoring a 170 year-old Jenny Lind bed that is in very rough shape with no side rails. I'm making new rails and will use the bolts with them. Bed is originally made with walnut and basswood; new rails are basswood. I find power mitering chisel works well in setting the nuts for the bolts.
October 2, 2009
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Browse 9 questions Browse 9 questions and 63 answers
Why did you choose this?
Rockler Store
I lost the hardware the bed came with and I did not have the wrench
GAIL C on Nov 29, 2019
Only bolt you had
Cecil H on Aug 23, 2019
I lost the hardware the bed came with and I did not have the wrench
GAIL C on Nov 29, 2019
Need to replace on existing bed due to age and condition.
Don H on Nov 17, 2019
Only bolt you had
Cecil H on Aug 23, 2019
for our antique bed
Day P on Jun 13, 2019
Need it for a bed.
Leonidas C on Jun 11, 2019
Two of the bolts on my antique bed, which was in the attic, have mysteriously disappeared. I am hoping these work.
Elisabeth I on May 17, 2019
To attempt to make a “knock down “ desk
Robert P on May 16, 2019
big strong and traditional
George S on Apr 12, 2019
Online reviews and size
James B on Apr 6, 2019
I have a full size reproduction antique bed from 1969...<br />In recent move these parts were lost...
Lora M on Dec 6, 2018
I bought an antique toddler bed and one of the nuts was missing for the bolt and I did not see where they are sold separate so I ordered two sets. I have 4 extra bolts already but no nuts.
Debbie Sowers E on Nov 7, 2018
also needed this for a bed project
Lee J on Jun 17, 2018
One bolt missing in my online purchase of two antique hand made beds.
Lawrence W on Jun 14, 2018
I purchased these as the bolts for my threaded inserts that I will use to connect the head and foot boards to the side rails. I may use the nut instead of the threaded inserts, but am reluctant to make another cut in the rails as the bed is well over 150 years old and has been restored using several wood patches so to speak. We'll see.
William H on Jun 4, 2018
I lost 4 of them when I moved and needed to replace them
Kyra S on May 3, 2018
Needed two more for bed.
Sidney C on Apr 24, 2018
bought an old bed and cannot find bolts to fit
Joan R on Feb 18, 2018
matched it up with another one that I had , did a search for wooden bed frame bolts and found Rockler came right up and there the exact bolt I needed was there.
James B on Jan 24, 2018
used before, worked ok
ROBERT B on Aug 14, 2017
I have built several beds, all utilizing these 3/8" diameter bed bolts. When used in conjunction with dowels, these bolts provide a strong assemblage just the way old craftsmen use to build.
Alan on May 23, 2017
refurbishing an old wheat bead in need of a few parts, repairs and a little TLC.
Scott B on Mar 20, 2017
Have used these on a pair of antique sleigh beds. Simple, strong, and easy to assemble/disassemble. Bed bolt covers add a nice finish.
Jason W on Mar 13, 2017
Great Bed rail to post connection.
Paul A on Jan 24, 2017
Works great. Best way to put a bed together
Robert F on Jan 7, 2017
Sturdiest bed hardware solution.
John M on Dec 18, 2016
for a bed I'm making
Dennis J. F on Dec 1, 2016
Only place I could locate this type of bed bolt.
Ami H on Nov 2, 2016
Very hard to find and ROCKLER had the best price.
Thomas I on Oct 24, 2016
To fit existing bed for which hardware was lost.
David E on Oct 10, 2016
I am hoping this will do the trick, as I purchased a very early rope bed that was converted to hold today's mattress and two of the bolts were missing.
Kelly K on Oct 6, 2016
I prefer this bolt over all other methods of securing bed rails. Call it "Old school", but this has served me well for years and never failed.
Alan on Sep 23, 2016
I needed a 3/8" diameter, 6" long, bed bolt
George L on May 23, 2016
Building a bed for my sister and I have used these same bed bolts for years.
Jimmy M on Feb 24, 2016
Have an old bed with several missing bed bolts, very happy to have found these!
Sean R on Feb 9, 2016
I need Bed Bolts for a 4 poster bed and hope these will fit.
Hannah S on Dec 8, 2015
Used them on another bed i built and they worked out great.
Jimmy E on Nov 30, 2015
It seems to match what I have for my bed. One was lost and one is bent. I needed two to put the bed back together!
Carol N on Nov 14, 2015
replacements for parts that got lost in moving
Julie V. B on Oct 26, 2015
David E on Oct 18, 2015
restoring an old bed
janice p on Jul 27, 2015
hard to find, just what I need!
Sara W on Jul 23, 2015
I have an old be with the bolts missing and needed to replace them.
Robert L on Jun 15, 2015
It is a close match to a replacement bolt for my bandsaw. Replacement parts from manufacturer are not available.
Jack S on May 26, 2015
To replace 2 - 100+ year old bed bolts used to attach heavy front legs to a large mahogany side board.
Pembroke P on Apr 12, 2015
Lost bolts for 2 Euro Armoires, these are replacements. Hope they fit.
Marie France L on Apr 9, 2015
Need to replace on existing bed due to age and condition.
Don H on Nov 17, 2019
for our antique bed
Day P on Jun 13, 2019
what size is square head, I have sq. sockets from my mechanic days ,wondering if I need to buy the wrench?
A shopper on Aug 27, 2015
BEST ANSWER: I did not buy the wrench and a standard American socket set will have a socket that will tighten the bolt without any problem. I do not remember which size worked but I can check and let you know if you wish.
i recently purchased ..n awesome antique bedlooks a little french inspired. got the head and foot boards and wooden side rails, but there a inner grove allowed a stability rod. can just bolt through headboard but fut board has about 3"x1" slot and inside that a rod runming acros as to the rod actually hooking in this end. so far havent seen anything like it
Any idea?
karen b on May 18, 2015
BEST ANSWER: Hi there are so many variations in these beds that have to be considered it would be helpful to have a picture of thisI just did the same thing had to dig out wooden plugs and replace the old nuts as the new bolts had different thread pitch
Where can I just purchase the nuts for the bolt?
A shopper on Apr 17, 2015
BEST ANSWER: You can purchase 3/8" x 116 tpi Square Bolts at many local hardware stores. They are also available from
I bought these years ago for a beautiful cherry queen size bed. Today I finally tried to put the bed together and found these bolts to be about one inch too short so they do not reach the nut. Any ideas? Thanks.
Finster on Jan 9, 2016
BEST ANSWER: The nut is captured in a pocket within the bed rails, right? You would need to make a new pocket closer to the leg, or drill a countersunk hole in the outside ofthe leg into which the head of the bed bolt would fit deep enough to get to the nut in its existing pocket and yet still be able to get the end of the bedbolt wrench on it to tighten. That would best be done with a drill press. Hope this helps
I have a super king size metal bed frame that i purchased from Marks and Spencer but the bolts got lost in house move. There are two holes at each end in the bars that connect to the head and foot frames. The holes do not go right through the legs will i be able to fit these bolts to it? Thank you
Margaret L on Jan 31, 2017
BEST ANSWER: Hi Margaret,

The question indicates an awareness of how fasteners work. However, the answer to your query is in the details. I do not have the details to answer your question. I bought these bolts for a wood head and foot assembly and wood frame. They worked really well for my case. I suggest you do a wee sketch and go to your local hardware store and get advice and fasteners that will work for your steel frame and head and foot assembly. Maybe even take a piece of the metal frame with you. Good luck.
Mike in Bozeman, Montana
What is the diameter of the circular portion of the head?
Dan A on Nov 25, 2018
BEST ANSWER: About 7/8”
I have a cherry bed I'm putting together it has 3/4 inch side rails will the 3/8 bolt be too big for that thickness?
Mike P on Jan 24, 2018
BEST ANSWER: I think the nut with the 3/8 in will be too wide for 3/4 in side rail. The nut itself is 3/4 inch. I use 5/4 stock and plane it down to 1 and 1/8 inch for side rails and use the 3/8 bed bolt that you are asking about and that works well. It might be possible to get a 3/8 in hex nut that could work with the 3/8 in bed bolt and 3/4 inch rail.
what's the physical dimensions of the nut?
ronald c on Sep 5, 2017
BEST ANSWER: Sorry, I don't have it in my possession anymore but it's probably about 3/4".
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