Sapphire Products - Small Solid 90° Countersunk Head Reaper Rivets

Incorporating
The Rivet Supply Company

Sapphire Products Limited
Unit E3 Ivanhoe Business Park
Tom Bill Way,   Smisby Road,
Ashby de la Zouch,   LE65 2UY
Tel :  0121  326  6000       or       0121  327  4868
Fax : 0121  328  5518

90° Countersunk Head Reaper
Also called Flat 90° Countersunk Head Imperial Sizes

Solid 90 degree Countersunk Head Reaper Rivet - schematic

Small Solid Imperial Rivets for General Engineering Purposes
BS 641 : 1951 Table 9 90° Countersunk Head Reaper Under ½ Inch Diameter - All Dimensions in Inches - All Materials
- - - Shank Diameter - - -			Head Diameter	Head Depth	Setting
Nominal D	&	Tolerance	A=1.65D	B=0.325D	Allowance S=0.257D
6 SWG	0.192	0.188 / 0.194	0.317	0.062	0.049
-	0.202	0.197 / 0.205	0.333	0.066	0.052
5 SWG	0.212	0.207 / 0.215	0.350	0.069	0.054
4 SWG	0.232	0.227 / 0.235	0.383	0.075	0.060
3 SWG	0.252	0.247 / 0.255	0.416	0.082	0.065
The Britsh Standard does not specify tolerances for Head Diameter & Depth, Angle of Countersink or Shank Length. It is normal to have a radius under the head and at the periphery of the countersink, but no dimensions are specified.