Copper Burrs, also known as copper washers, are often used with Copper Common Nails to create a traditional copper rivet, similar to clinch nailing. Copper rivets are utilized in classic planked wooden boat construction.
See the "Burr Size Selector" chart below for burr and nail assembly suggestions.
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Nail Penny Size / Gauge / Shank Dia.
Burr Fit # (Loose or Tight)
Burr Fit (inch)
2d / #15 / 0.072 inch
3d / #14 / 0.083
4d / #12 / 0.109
#12 or #13
0.124 or 0.102
5d / #12 / 0.109
#12 or #13
0.124 or 0.102
6d / #11 / 0.120
8d / #10 / 0.134
#10 or #12
0.138 or 0.124
10d / #9 / 0.148
#8 or #9
0.166 or 0.146
16d / #8 / 0.165
#7 or #8
0.176 or 0.166
20d / #6 / 0.203
40d / #4 / 0.238
Burr ID x OD (inch)
Count / Weight (approx)
0.093 x 0.315
0.102 x 0.345
0.124 x 0.367
0.138 x 0.412
0.146 x 0.445
0.166 x 0.477
0.176 x 0.498
MET / STD:
At the museum that I volunteer at a 11G, 2" copper slate nail in conjunction with an in-house container labeled with a #13 burr which I measured to be about 3/8" diameter is used on a regular basis for boat work. In the charts I cannot put together this combination. The nail I am sure of but I would like the burr to be 3/8 " or very close with a tight fit. This is for installing a new rub rail on a dinghy project. I would appreciate it if someone could confirm the burr I need so that I can order. Could you please assist? Thank you.
A #13 Burr has a hole diameter of .102" . Copper nails in 12 gauge have a shank diameter of .109 which would be a tight fit on the #13 burr. If the Nail is an 11 gauge that shaft diameter should be about .121" which means the #13 burr will be real tight. A #12 burr has an ID hole of .124 which will be large on an 11 gauge nail. There isn't a #11 burr unfortunately.
Thanks Rick. Great answer and that tells me what I need to know. Thank You very much and have a Happy New Year.
What is the proper burr size to use in combination with a 16D copper nail?
#8 burr for a tight fit, #7 for a loose fit.
How many #13 copper burr's are in an .oz ?
About 93 per oz.
The NCB120Z copper burrs - what is the thickness?
It took some time to find them. On the envelope is the notation 4619 #14The best that I can determine is that the thickness is .02 inch
RICHARD A WIESEN
The copper burrs are 0.05 inches or 1.5 mm in thickness on average. They work exceptionally well and this would be for the size 9, Item number NCB8OZ. I have never had a failure using these burrs and these are the only burrs and rivets I use in my leather work. Hope this helps...By the way, these rivets are used at all major stress points in my tack and harness riggings and when a 2,200 pound draft horse lunges against 6,600 pounds in a pulling contest I'd say that gives a good idea of the strength of these rivet and burr combinations! ;-)Tom Owen, Saddler and Leather Crafter
Regret that I have none left in stock to measure.
A #14 NCB14oz nail would require what size Burr?
NOTE! A NO. #14 NAIL (.083" SHANK DIA.) WILL GIVE A LOSE FIT OF .010"WITH A NO. #14 BURR. (.093" I.D.) I WOULD USE A NO.#12 NAIL (.109" SHANK DIA.) WITH A NO.#13 (.102" I.D.) TO GIVE ME A TIGHT FIT (OR FORCE FIT) OF .007" . ( THE 18'LYMAN )
There is only 1 for #14 and #15 nails. Use the #14 burr in your case. For larger nails, there is a choice as to "loose fit" or "tight fit". Not in the case of the smaller sizes. There is a Tech Specs pop up that shows you a table for each nail size regarding burr selection on the JD web site. Bob
You could use the size #14 burr with that, but some builders prefer to go one size small on the burrs- it provides a tighter fit, which, in my experience, can make solo riveting a little easier. Also, if you are new to the process, the smaller burr can provide a tight fit even with the first few messy rivets.
The NCB14OZ is the part number for a 14 gauge copper burr. This burr will work with a 3d common copper nail (NCC14X11/4) and will have a fairly loose fit for riviting.
what are the inner & outer dimensions of these washers?
OD = 7/8"ID = 1/8"
Not for riveting witdh 14g copper nails
Description says these burrs can be used with the copper nails to make rivets. I ordered the 14g copper nails and matching 14g hole burrs. However the burr holes are too large and do NOT cinch down on the 14g nails, making it impossible to use a rivet setter to peen the nail end down after it is cut to length for the material thickness. Would not recommend for rivet use as described.
Mike the Architect
To much variation
Would not use again.
just what I needed
These burrs are hard to find in the size 14 so I am glad to have found that Jamestown Distributors carries them!