TSM series SMT board-to-board square post header terminal strips with a 2.54mm pitch, a black liquid crystal polymer insulator and phosphor bronze terminals with 0.25μm gold on post and matte tin on tail. These TSM series surface mount PCB board to board square post header terminal strips are available in a variety of configurations including single and double row, straight and right angle body orientation and an option of post lengths. The operating temperature range for these TSM series PCB SMT header terminals is -55 to 125°C.
TSM PCB SMT headers with part number TSM-xxx-xx-x-SH are single row with horizontal pins.
TSM PCB SMT headers with part number TSM-xxx-xx-x-SV are single row with vertical pins.
TSM PCB SMT headers with part number TSM-xxx-xx-x-DH are double row with horizontal pins.
TSM PCB SMT headers with part number TSM-xxx-xx-x-DV are double row with vertical pins.
TSM PCB SMT headers with part number TSM-xxx-01-x-xx have a 5.84mm post height.
TSM PCB SMT headers with part number TSM-xxx-02-x-xx have a 8.13mm post height.

TSW series PCB through hole board-to-board square post header terminals with a 5.84mm post height mate with the following:
BCS standard box sockets - see stock number 766-6499 typically
SSW socket strips - see stock number 765-5593 typically
SSM surface mount socket strips - see stock number 765-5357 typically
Post header terminals with an 8.13mm post height mate with the following:
SSM surface mount socket strips (part numbers SSM-xxx-x-DH only) stock number 765-5357 typically.

2.54mm Board to Board and Wire to Board - Samtec