24 PK Archery Pin Nock Bushing Arrow L Pin Nock Set for Arrow Shaft ID .166 Inches

Fit great !!!!

Fit my 400 spine 4mm eastons perfectly

Pretty good nocks, but not quite as large as I expected. As you can see from the picture, they're really only .233, which is just enough so they won't press fit into the shaft. I used the same hot melt glue I use for points/inserts, and expect that will hold them fine, but you could also use a flexible crazy glue. I'd rather have them on the small side than the big side, as I've actually cracked some arrows trying to force larger ones in.

i purchased 48. in that sample, i measured the arrow interface at 0.244 +0 / -0.004. the smaller diameters (0.241) aren't really usable ... too loose. i got about 50% which were 0.243 - 0.244. i also got one which was unusable because of tool marks. pretty sloppy machining, but for the price i guess they're ok.

They fit good the nocks fit nicely and snug. I give them a thumbs up 👍