The most popular type of screwdown for trading cards on the market
today. This new and improved version
has recessed arrowhead in each corner so that the trading card's corners are never touched. It
also has a white frost on all four sides of the card which makes the collectible
card stand out better. Invented by Pro-Mold in 1993. Beware of cheap imitations.
Available in three different sizes;
regular card - 20 Point, thicker
card - 50 Point, and real thick card -
120 Point.
Strengths: Small and compact compared to traditional style
four screw screwdowns which allows for storage of
many in smaller spaces particularly in monster boxes or shoe boxes. What made
the one screw screwdown popular is the fact that you get all the benefits of a
four screw, as far as protection of the trading card goes, but with only having to use
one screw instead of four.
Weaknesses: This baseball card case itself has no real weakness but some
collector's prefer not to deal with screwdown holders because they're time
consuming and tedious to screw together many at a time, which is why they use the
snap-design holders or our new line of
magnetic card holders instead.
2. What is this holder made out of? PVC? Answer:
This card holder as well as all our other card holders are
made out of polystyrene. Polystyrene is an archival safe raw material and
it contains no hazardous chemicals, PVC or plasticizers.
3. Why should I buy the Pro-Mold One Screw Screwdown instead of
the competitors? Answer: The Pro-Mold One Screw Screwdown is made in America with high quality
raw materials from leading American polymer (plastic) manufactures. Many of
the imported mini-snaps are made from a low grade material using a lot of
regrind which give their parts a blue tint and less optical clarity.
4. Will Pro-Mold be coming out with a "Super Thick"
card holder for the new Upper Deck Sweet Spot cards? Answer: Yes. See
this page: Premium Super Thick Card Screwdown