These are 8mm standoffs/spacers with M2 threading.
320 Pcs Hex Standoff Brass M2 Type Spacer Standoff Nut Screw
CREAP M8 / S=13mm Brass Hex Standoff Pillars Hexagon Female Thread
KHGWERO 50pcs M2 Brass Round Knurl Male Female
M2.5 Male Female Hex Brass Spacer Standoff Screw Nut Kit 40pcs
CREAP M8 / S=13mm Brass Hex Standoff Pillars Hexagon Female Thread
Tsnamay M2.5 x 11mm + 6mm Male to Female Thread Brass Hexagon Hex
M2 Screw - 12 mm (Stainless Steel) - StacksKB
25pcs M2 8mm Brass Spacer Standoff Male to Female Hex Spacing
Comes in a pack of 10 standoffs.
M2 Standoff Spacer Brass Round
CREAP M8 / S=13mm Brass Hex Standoff Pillars Hexagon Female Thread
25pcs M2 8mm Brass Spacer Standoff Male to Female Hex Spacing
M2 M3 Hex Male Female Brass Standoff Hexagon Threaded Stud Board
Lystaii 320pcs M2 Nylon Hex Spacer Standoff Kit Male Female Screw
Comes in a pack of 10 standoffs.
M2 Standoff Spacer Brass Round
25/50/100pcs Brass M2 M3 Hex Column Standoff Support Spacer Screw