Enhanced capacity screw coupling assembly for coaching stock, to drawing/ specification rdso spec. c-9505 [revised -aug 2001], rdso/sk- 99001, alt. no. 4, item no.-1 to 17 in assembled condition.

Link for enhanced capacity screw couplinlink for enhanced capacity screw coupling to rdso drg. no. sk.99002, alt-5, item no. 1. material and specification: rdso specn. no. c-9505 [revised].

Trunnion (r. h. thread) for enhanced capacity screw coupling, to rdso sk-99002, alt. 5, item no. 6 conforming to rdso spec. no. c-9505 (revised), amendment 1 of october 2016

Bent coupling link together with trunnion (l.h thread) for enhanced screw coupling to rdso sk-99002, alt-5 item nos 2 and 5. material and specification confirming to rdso spec. no c-9505 (revised), amendment 1 of october 2016

Trunnion (right hand thread) for screw coupling, to rdso sk-99002, alt-5, item no. 6.material & specification: rdso spec. no. c-9505 (revised), amendment 1 of october 2016

Collar for enhanced capacity screw coupling to rdso drg. no. sk-99002 alt.-5. item no. 9.

Revised arrangement of transition screw coupling

Bent coupling link with trunion nut to rdso drg. no.- sk- 99001, alt.- 4, item no.- 2, fitted with item no.- 6 ( in assembled condition ), safety item.

Draft key for enhanced capacity draw hook to rdso drawing no. sk-99006 alt.2.

Screw [ 58 dia x 453 ] for screw coupling extract of rdso drg. no. sk-99002. alt-5, item 3. material and specification as per drawing